Question Answered: Spitting gas back out while I'm fueling up
February 17, 2015, 06:49 AM
The check engine light flashes when the engine is misfiring severely enough to damage the catalytic converter. This requires immediate service. I see from the information contained in your question that you have already had some ignition system work performed. That work needs to be rechecked. I would also look at fuel pressure. The gas spitting back at you is probably an unrelated problem. The tank vent is likely plugged with debris from a faulty vapor canister.
Question Answered: Engine miss that comes and goes
April 18, 2013, 10:03 AM
There are a variety of things that can cause the symptoms you describe. One common problem that can be intermittent and temperature sensitive is a leaking intake gasket. You need professional diagnosis to pinpoint the cause of the problems.
Question Answered: Could a manifold gasket leak make the catalyst system read PO420?
April 18, 2013, 09:51 AM
P0420 indicates the catalytic converter is performing below a predetermined threshold. The performance is measured by the rear oxygen sensor. If the exhaust manifold is allowing air to enter the exhaust system, that excess air can mess with the measurements made by the oxygen sensor. So to answer your question directly, yes, it is possible than a manifold leak could cause a false code P0420. However, it is not likely. There is also an oxygen sensor in front of the converter. If there was excess air in the exhaust, I would expect the front 02 sensor to see the extra oxygen and set a code for exhaust too lean. If that is not happening, then excess oxygen is probably not present and therefore, not responsible for your code P0420.
Question Answered: HVAC fan stopped working, on any speed, at any temperature setting. Diagnosis?
August 23, 2012, 11:51 AM
There are several possible causes of the symptom you describe. The most likely is that the blower controller, aka blower resister has failed. Late model Chrysler products are known for a pattern failure of the blower controller melting due to high current flow. If this happens, replace the controller and the blower motor. The blower motor is drawing too much current which melts the controller.
Question Answered: Air conditioner, does it need refrigerant or new compressor?
August 23, 2012, 11:47 AM
If the compressor is not functioning the air conditioner will blow warm. If the system is low on refrigerant, the compressor won't turn on. Either way, no cold air. Only a detailed inspection by a qualified technician will tell for sure. Of course, if the compressor is not coming on because the system is low on refrigerant, the question is "where did the refrigerant go?" If you have a system leak, that will have to be fixed first.
Question Answered: DASH AND TAIL LIGHTS NOT WORKING,
March 01, 2012, 06:54 AM
You need a wiring diagram to trace the circuit. I suspect the fuse is powered from the headlamp switch. If so, check power at the switch. The headlamp switch could be the problem.
Question Answered: when i put it in 4x4 it knocks/cluncks when i give it gas.
what could it be
February 13, 2012, 07:51 AM
The noise might be caused by a loose chain inside the transfer case. Or you could have a faulty U-Joint on the front propeller shaft. It is unlikely that the U-Joints on the front drive axles are causing the problem because you don't hear it when turning.