The following is a compilation of Q&A's submitted by enthusiasts and answered by Ed.
Part Sixty Eight Q&A 1676 - 1700
1676. I have a 2002 TE PT with 36k miles. The car intermittently dies at stops, surges when taking off from a stop and idles rough. This has been an issue since new. The self tests indicate fault code P0068. The dealer flashed the PCM and replaced the plugs, but it hasn't helped. I replaced the throttle sensor, and the mass air flow sensor, but it did not help. We like the car a lot when it runs right but are ready to dump it. – Chet, from California.
P0068 - Manifold Pressure/Throttle Position. Correlation MAP sensor signal does not correlate to throttle position sensor signal.
Possible causes for this DTC include:
High Resistance in MAP 5 Volt Supply Circuit
Resistance to Ground in MAP 5 Volt Supply Circuit
High Resistance in MAP Signal Circuit
Resistance to Ground in MAP Signal Circuit
High Resistance in MAP Ground Circuit
TP Sensor Operation
High Resistance in TP Sensor 5 Volt Supply Circuit
Resistance to Ground in TP Sensor 5 Volt Supply Circuit
High Resistance in TP Signal Circuit
Resistance to Ground In TP Sensor Signal Circuit
High Resistance in TP Sensor Ground Circuit
The PT does not utilize a MAF sensor, perhaps you're thinking about the MAP sensor. If you replaced the MAP and TPS and still have an engine light (MIL), they didn't resolve the problem.
This fault can also be caused by a vacuum leak, which could help explain the rough idle and surging. Check for vacuum leaks first. If vacuum is ok your dealer will have to run a diagnostic to rule out the remaining potential causes in the list.
Once you correct the issue with the fault code, test for rough idle. If it still exists see Tech Library, Engine Performance subsection.
1677. I have a 2002 LE PT with 85k miles. I am etiquette challenged therefore I won't bother to include a please or thank you. My dome light is not working; how do you replace the bulb? – Vern, from Oregon.
Insert a trim stick between the lamp unit and the lens. Carefully swing down one side the lamp lens. Remove lamp from lamp unit socket. Push lamp in socket and snap into place. Position lens on lamp unit and snap into place.
1678. I just purchased a preowned 2001 PT. The HVAC air distribution control was a little stiff. Tonight, when trying to changing the airflow from the screen, it went very slack. Taking out the window switches let me see that the operating cable is still connected at the control end, so I suspect it's become disconnected at the HVAC end. Is there an easy way to get to it, or will I have to remove the HVAC unit simply to reconnect the cable? – Gary from the UK.
If you're describing the Mode Door control the cable can be replaced without removing the entire HVAC assembly or instrument panel. OE guides are available through the Pit area if you need help.
Follow up from owner - Thanks to the details available in the guide I was able to fix the problem in less than 1/2 hour. Am I glad I subscribed....worth every penny!
1679. I took my 2003 DC PT with 76k miles in for an A/C leak repair and the mechanic found two other issues with my car, one common according to him (motor mount) the other was my hub bearings. Is this common on a PT? Cost for parts/labor on the Hub bearings is estimated at $700! Is that in line with what I should expect? Thanks in advance. –JB, from USA.
The wheel bearing is supposedly designed for the life of the vehicle and requires no type of periodic maintenance however some owners have reported replacing them. I would describe it as a common (but average) repair issue, which afflicts all model year PT's and many other manufacturers vehicles.
Owners can use the following procedure for diagnosing the condition of the wheel bearing and hub. With the wheel, disc brake caliper and brake rotor removed, rotate the wheel hub. Any roughness or resistance to rotation may indicate dirt intrusion or a failed hub bearing. If the bearing exhibits any of these conditions during diagnosis, the hub bearing will require replacement. Do not attempt to disassemble the bearing for repair; it must be replaced. Damaged bearing seals and the resulting excessive grease loss may also require bearing replacement. Moderate grease weapage from the bearing is considered normal and should not require replacement of the wheel bearing. The wheel bearing and hub are pressed into the knuckle therefore one must remove the steering knuckle to access the bearing and hub.
The left engine mount is not difficult to replace however the engine assembly must be removed in order to obtain enough clearance to access the right mount. That's a lot of work. There have been a few reported engine mount issues, but again nothing out of the ordinary.
Can't comment on the estimate; you'll need to do a little comparison shopping in your area to determine if it's in line with other shops are charging. OE guides are available through the Pit area if you decide to DIY or are curious about the work involved.
1680. I have a LE PT but have been unable to locate my color name or number. I thought it was on the door jam, but I don't see it. Thanks. – Forum Poster, from USA.
Exterior vehicle body colors are identified on the Body Code plate under the hood (on the plenum behind the right side strut tower) and on the Vehicle Safety Certification Label, which is located on the driver's door shut face. The first digit of the paint code listed on the vehicle indicates the sequence of application, i.e.: P = primary coat, Q =secondary coat.
You can also contact DC (1-800-992-1997) or any dealer, provide them with your VIN and they can tell you every option that has been installed on the vehicle when it was built.
1681. I have a 2001 LE PT with 88k miles and just had the water pump replaced by A1 Auto Parts. Now the engine overheats. It does not register through the thermostat, the engine coolant light does not come on- I just hear bubbling from under the hood. There is no steam coming out, just bubbling, and my engine light comes on. When I reach 50-70 MPH I begin to feel the car jerk, so I let off the gas. The temperature gauge does not read hot at all. The self tests indicate P0500. Thanks. – Sheila, from Florida.
P0500 (M) - No Vehicle Speed Sensor Signal. No vehicle speed sensor signal detected during road load conditions. Possible causes include:
5-Volt Supply Ckt Open
Vehicle Speed Sensor Signal Circuit Shorted To Ground
Vehicle Speed Sensor Signal Circuit Open
PCM VSS Signal
Sensor Ground Circuit Open
Vehicle Speed Sensor
This could be the source of the overheating issue. Radiator fan operation is controlled by the PCM with inputs from the temperature of the coolant, which is sensed by the coolant temperature sensor, and vehicle speed, which is measured by the vehicle speed sensor. The PCM turns on the fan through either the high or low speed fan relay to cool the engine.
A technician will have troubleshoot the issue to isolate the fault. It could be something as simple as a disconnected or improperly reinstalled VS sensor.
1682. I have a 2002 CE PT with 46k miles. After leaving the vehicle stand for 2months I moved the car into my garage to change the front wishbone and anti roll bar bushings. The car was on an axle stands for 2 weeks whilst I was carrying out the work. When I lowered the car back onto its wheels and tried to start the engine the battery was dead. I jumpstarted the engine run but it ran very roughly; with a loud knocking noise coming from the gearbox end of the engine. After having the car checked out it was diagnosed with a faulty no1 coil. So this was replaced with a DC coil. But the rough run continued. So new leads and plugs were also purchased. And still, it's not firing on cylinder 1 and 4. Any ideas? – Ben, from England.
On domestic PT's the coil pack consists of 2 coils molded together. The coil fires two spark plugs every power stroke. One plug is the cylinder under compression, the other cylinder fires on the exhaust stroke. Coil number one fires cylinders 1 and 4. Coil number two fires cylinders 2 and 3. That suggests that there still may be an issue with coil one. The PCM determines which of the coils to charge and fire at the correct time.
Follow up from owner - I've swapped the new SDcoil with yet another SDcoil. Still getting the same running conditions; with the rattle from the gear box.
PTDIY follow up - Potential causes of all misfires:
ASD Relay Ouput Circuit (Coil)
Engine Mechanical Problem
Coil Control Circuit
Checking Fuel Pressure
Fuel Pump Inlet Strainer Plugged
Restricted Fuel Supply Line
Fuel Pump Module
Checking Fuel Leak Down
Fuel Injector Operation
ASD Relay Output Circuit (Injector)
Injector Control Circuit
PCM (Ignition System)
Given that the misfire is isolated to cylinder 1 and 4 and the ignition coil, wires and plugs are ok, the issue may be with a control circuit in the PCM. Coil control #1 and Coil control #2. We have diagnostics and wiring schematics in the Pit area, however I think you would be best served by having your local dealer take a look. They should have the necessary test equipment and DRB scan tool to pinpoint the issue and can rule out the PCM.
1683. I have a 2001 PT with the standard optional luggage rack. Is there an additional part I can buy to make it usable with snowboards or skis? I don't want to take the old one off, so, help me out. – Forum post, USA.
Chrysler stopped offering the OE luggage rack option on new PT's a few model years (2003?) back. Later model year owners can order a luggage rack through Mopar, but it is different then the OE racks that were installed as optional equipment at the assembly plant in Toluca on new 2001-2002 model year PT's. It may be difficult to locate parts for the original rack, much less an adaptor for snowboards or skis. Check with your local DC dealer for availability.
1684. I have a 2002 (export) PT. I am looking for an OE domestic license plate bracket (black plastic that mounts to bumper)? I live in the UK but need a US bracket. Thanks. – Geoff, from the UK.
Check with Wyckoff Chrysler online, they ship outside the U.S. Have their parts manager (Jeff Poole) verify the P/N for you. LICENSE PLATE, Package for 2002 model year domestic PT - P/N 5288 793AB.
1685. I have a 2004 PT with 84k miles. I am adding a navigation system that requires a VSS input. I cannot locate the VSS wire. It is supposed to be white/orange, but I have opened every plug at the PCM and there is not one. According to ALLDATA, it is above the oil filter, but there is no plug there either. Any help would be appreciated. – Robert, from California.
The Vehicle Speed Sensor (VSS) is a pulse generator mounted to an adapter near the transmission output shaft. The sensor is driven through the adapter by a speedometer pinion gear. The VSS pulse signal to the speedometer/odometer is monitored by the PCM speed control circuitry to determine vehicle speed and to maintain speed control set speed.
The service manual shows the white and orange VSS wire at connector C1, cavity 13 on the PCM. Wiring schematics and connector information are available through the Pit area on the site if you require further assistance.
1686. I have a 2001 LE PT with 14ok miles. Prior to the current issue (about 2 months ago) I changed the plugs, wires and ignition control. This seemed to stop all the problems we had at that time. Yesterday while driving at 40mph in the city, the car seemed to lose all of its get up and go. It just lost power all of a sudden; I thought we were going to stall right in the middle of traffic. I pressed the gas pedal to the floor and kept it there. Eventually the car seemed to respond. When we stopped at a traffic light it seemed to run a little rough, but later that also smoothed out. The same loss of power happened again later that night and my wife experienced the same problem the next day on her way to work. We stopped at Auto Zone and had them check the codes which were P0351, P0401, P0300 and P0420. – Ronald, from Missouri.
You have a variety of faults occurring at the same time. I suspect that at least two are related however without physical access to the vehicle and additional troubleshooting with a DRB scan tool and diagnostic manual that is only a guess. For instance, a P0300 and P0351 DTC can be caused by an EGR issue (P0401).
P0401 - EGR System Failure - Required change in air/fuel ration not detected during diagnostic test.
P0300 - Multiple Cylinder Misfire
P0351 - Ignition Coil Primary # 1 Circuit - Peak primary circuit current not achieved with maximum dwell time. Possible causes include:
ASD Relay Output Circuit
Ignition Coil Driver Circuit Open
Coil Control Circuit Shorted To Ground
P0420 - 1/1 Catalytic Converter Efficiency - Catalyst 1/1 efficiency below required level. (This fault can also occur when you have a new upstream 02 sensor and a aging downstream sensor.)
Additional troubleshooting will be required to isolate the issue.
1687. I have a 2003 PT export with 2.2 CRD engine. I'm having some difficulty replacing a bulb. The bulb (not the low or high beam, or turn signal bulbs) is in the main head light unit. There is a long plastic tab that the bulb seems to be fixed to the end. It doesn't look like you can rotate it like the normal low beam bulbs to remove and I really don't want to give it a good tug incase I break the holder and then would have to buy a new lens unit.
That's the Front Position Lamp on the export. They utilize a clear lens and clear bulb. Grasp the front position lamp socket extension and pull straight it out of the headlamp unit. Then rotate the bulb counter-clockwise and pull it straight from its socket. - Forum post, from the UK.
I own a 2002 LE PT. I've had a misfire problem for over 12 months. I've tried everything, but the main dealer, which unfortunately is something I'm going to have to do as the problem is getting worse. I've changed the following: -
Paid for engine check
And to date nobody can find the fault, which is poor acceleration, misfire during heavy acceleration, sluggish, hesitant. You name it, it does it and it's getting dangerous. I have noticed recently that plugs 1 and 3 are showing black lines through the ceramic part of the plug indicating flashover. Thanks. – Forum poster, from U.K.
Your description of black lines through the ceramic part of the plug suggests electrical tracking. You may also want to check the boots, ignition wires, nipples, and wires to the coil for signs of tracking. If tracking is observed on the spark plug, coil or inside surface of the boot and or nipple, the spark plug wire and the mating part must be replaced. Electrical tracking can ultimately cause drivability issues such as engine misfire, rough idle, stalling, lack of acceleration, and reduced mpg.
Under low light conditions start the engine with the hood open and run it while inspecting the spark plug wires. Make sure there is no intermittent spark occurring anywhere along the exterior of the spark plug wires. This is typically seen as a short blue spark or small electrical arcs, and heard as a cracking or snapping noise. Pay particular attention to points along the spark plug wire that are close to other wiring. Make sure the spark plug wires are not arcing to any ground plane such as an exhaust manifold, engine bracket, heater hose, etc. Spark plug wires should not be in contact or within 1/2" of any ground plane. If any of these conditions are present there is a high-voltage electrical leakage through the insulation and the full current is not being carried to the spark plugs from the ignition coil. In acute cases, this condition can partially light up the engine compartment. Keep your hands in your pockets and out of the engine bay while performing this simple test.
See Tech Library, Engine Performance, Ignition Control and Electronic Control Module subsections for other suggestions.
1689. I have a 2002 LE PT with 80k miles. Intermittently, my two front windows will not roll down. The rears work fine. I can hear the motor actuate when I hit the "up" button, but there is no action or noise when hitting "down". It will do this for several days, then suddenly they will roll down for a few days, then it will happen again. Being the two windows are affected together I am thinking it's not the window motor. What should I do? Thanks. – Jimmy, from Oklahoma.
It is not likely that the regulators and motors in both front door windows are failing at the same time. I would begin by checking the express down module which houses the switches. A number have failed and been replaced by owners. You'll find a diagnostic and replacement guide in the Pit area if you need help.
Follow up from owner - Thanks, the switch was faulty. Excellent resource.
1690. I have a Classic PT with 91k miles. The PT won't shut off. I am able to remove the key and it keeps on running. Once I get it to shutdown, then it won't start; no lights, sounds as if the battery is dead (new battery). It turns itself on; lights and alarms. I can touch the battery with booster cables and everything comes back on without turning the key. – Janis, from Canada.
I would begin by having the ignition switch checked, a number have failed and been replaced by owners.
1691. I have a 2006 BE PT and just need to know the recommended tire pressure? I can't read it on the placard. – Sandra, from Florida.
The proper cold tire inflation pressure is 34PSI.
1692. I have a 2005 BE PT convertible. We had high water this week in Houston and I had no choice but to drive through to get home. Now it sounds as if the horn (if attached to keyless entry sound) apparently got wet and I can barely hear it when I lock the car. When I blow the horn the sound is muffled as well. What can I Do? – Teresa, from Texas.
It must have been pretty high water to reach the horn. It may still have residual water left in it. Either you or dealer will have to physically inspect it. It's located in the right front wheelhouse behind the splash shield. The RMKE module is under the dash, it is not likely to be affected by water in this instance.
1693. I have a 2006 TE PT Convertible with 18k miles. My car was broken into, and the plastic covering the gauges was smashed. I would like to trade the instrument cluster for one that is not damaged from an auto wrecker or ebay. If I change my gauge cluster will my odometer readings be the same as they are now, or will they change? I don't want to involve insurance as this was the only damage, and I don`t want my insurance rates to sky rocket. Thanks. – Greg, from Canada.
Although we suggest purchasing some OE replacement parts through local salvage yards to reduce owner cost, the cluster does not fall into this category.
Clusters require very special handling and there's no way to determine the condition of a cluster purchased through a salvage yard. Clusters are not DIY installations. They must be programmed by the dealer with a DRB III scan tool specifically to each vehicle.
If you provide a dealer with a salvage yard cluster (assuming they will accept one) and they encounter problems programming it, the assumption will be that the cluster is faulty and you will not be able to easily disprove it. They will charge you for all labor costs regardless of outcome. If you purchase a cluster through the dealer and they have an issue programming it, you're protected be the part/dealer guarantee.
1694. I have a 2003 GT (LO) with 54k miles. This fault code (P1188) keeps reoccurring. We just bought this car and I would like to know what it is and what I need to do to fix it. Thanks. –Albert, from Kansas.
P1188 TIP Sensor Performance
Non-boost Mode: PCM detects a significant difference between TIP Sensor signal and BARO Pressure signal.
Boost Mode: The TIP Sensor is unable to read correct boost level.
Possible causes include:
Hoses and Tubing
Vacuum Supply to Surge Solenoid
Solenoid Test #1
Solenoid Test #2
Solenoid Test #3
Solenoid Test #4
About the only thing you can check as a DIY'er is the hoses and tubing as indicated below.
Check all of the tubes and hoses between the air cleaner and the intake manifold for loose connection, damage or restriction.
Check all of the tubes connected to the intercooler for loose connection, damage or restriction.
Check all of the tubes and hoses connected to the turbocharger, TIP Solenoid, Surge Solenoid and Wastegate Solenoid for loose connection, damage or restriction.
If the hoses and tubing are ok, your dealer will have to isolate the issue to one of the remaining components. If you're curious a diagnostic is available through the Pit area, but as I've indicated there's not much you can check on your own.
1695. I have a 2002 LE PT with 45k miles. About a month ago the MIL popped on with fault code P0133. After half a dozen start and stop cycles the MIL extinguished itself. A few days ago the MIL popped on again, with fault code P0134. I've driven a few drive cycles but the MIL has not extinguished itself. What would cause this DTC? Thank you. – Carl, from Wisconsin.
P0133 - 1/1 O2 Sensor Slow Response - Oxygen sensor response slower than minimum required switching frequency.
P0134 - 1/1 O2 Sensor Stays at Center - Neither rich, or lean condition is detected from the oxygen sensor input.
Both faults are related to the upstream oxygen sensor. Possible causes would include:
O2 Signal Circuit
O2 Return Circuit
To some extent you can visually check for an exhaust leak, however given that you have experienced both fault codes I would suggest that it is probably not an issue with the exhaust or circuit, but a slowly failing sensor. Your local dealer will be able to test the system and make an accurate determination.
Follow up from owner - I decided to take a chance and replace the sensor. The dealer wanted $345 to diagnose and replace the sensor if it was faulty. I used the guide in the Pit area and replaced the sensor for $150. Then I took the vehicle to a local shop and they erased the codes for free. Everything appears to be working fine now. Thank you for saving me a good deal of money.
1696. I have a 2003 GT (LO) PT with 72k miles. I'm experiencing a P0442 fault code, where would I begin looking? Thank you. – Paul, from Oklahoma.
P0442-Evap System Medium Leak
A 0.040 leak has been detected in the evaporative system
When Monitored: Engine Running. Cold start test. Fuel Level greater than 12%. Ambient temperature between 4°C and 32°C (39°F and 89°F) Close Loop fuel system. Test runs when small leak test is maturing.
Set Condition: The PCM activates the EVAP Purge Solenoid to pull the EVAP system into a vacuum to close the NVLD switch. Once the NVLD switch is closed, the PCM turns the EVAP Purge solenoid off to seal the EVAP system. If the NVLD switch reopens before the calibrated amount of time for a Medium leak an error is detected. Two Trip Fault.
Possible causes include:
2. Visual and Physical Inspection
3. Evaporative Emission Leak Detection
4. Evap Purge Solenoid Operation
5. NVLD Switch Operation
Specialized equipment is necessary to run the majority of tests, however you can conduct a Visual and Physical Inspection of the entire Evaporative Emission system.
Check for the follow conditions:
1. Holes or cracks.
2. Loose seal points.
3. Evidence of damaged components.
4. Incorrect routing of hoses and tubes.
5. Fuel Cap gasket seal. (A loose gas cap can cause this DTC to set. Make sure gas cap is tight and in good condition. Ensure the gas cap meets OEM specifications.)
1697. I have a 2001 TE PT with 156k miles. I drive quite a bit at night and use the high beams on a regular basis. One night I noticed they were not switching from low beam to high beam. I replaced both bulbs and it still won't switch from low to high. Thanks in advance! – Craig, from St. Louis.
If both the left and right high beams are inoperable after bulb replacement it's most likely the multifunction switch. As a precaution, check fuses #16 & 17 (15amp) in the PDC under the hood which feed the left/right high beams. If the fuses are ok, you can try replacing the headlamp relay in the interior fuse box, however if I were a betting man I would test the multifunction switch. The headlamp switch is integral to the left stalk of the multifunction switch. The diagnostic is on the site. The relay is an uncommon failure and would probably affect both the high and low beam lamps, whereas the multifunction switch has failed numerous times.
1698. I have a 2001 BE PT with 80k miles. When I an driving down the road at 55-70 MPH I can turn the speed control on and set it. Some times it will work, some times it won't. If it does work, and hit the brake and try to resume, it may or may not continue to work. Even the speed control indicator will go out and will not come back on. I checked the hose for vacuum and it is ok. What else do I need to check? – Charles, from Georgia.
Perform a vehicle road test to verify reports of speed control system malfunction. The road test should include attention to the speedometer. Speedometer operation should be smooth and without flutter at all speeds.
1. Flutter in the speedometer indicates a problem which might cause surging in the speed control system. The cause of any speedometer problems should be corrected before proceeding. If a road test verifies an inoperative system, and the speedometer operates properly, check for:
2. A DTC; if a DTC exists, conduct tests per the Powertrain diagnostic manual.
3. A misadjusted brake (stop) lamp switch; this could also cause an intermittent problem.
4. Loose or corroded electrical connections at the servo; corrosion should be removed from electrical terminals and a light coating of multipurpose grease should be applied.
5. Leaking vacuum reservoir.
6. Loose or leaking vacuum hoses or connections.
7. Defective one-way vacuum check valve.
8. Secure attachment at both ends of the speed control servo cable.
9. Smooth operation of throttle linkage and throttle body air valve.
10. Conduct electrical test at PCM.
11. Failed speed control servo; do the servo vacuum test.
1699. I have a 2001 BE PT with 102k miles. How do I get to license plate bulb and replace it? – Michael, from New Jersey.
1. Remove screws attaching license plate lamp to rear bumper.
2. Remove lamp from bumper.
3. Remove bulb socket from lamp housing.
4. Pull bulb from socket.
1700. I have a 2001 TE PT with 64k miles. When starting the vehicle the starter doesn't disengage after it starts, and fries the starter. – Robert, from Ohio.
Possible causes for the starter not disengaging include:
1. Starter improperly installed.
2. Starter relay faulty.
3. Ignition switch faulty.
4. Starter assembly faulty.
5. Faulty teeth on ring gear.
You'll need a service guide for further troubleshooting, or you'll find a starter system guide in the Pit area on the site.
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