Question about 1990 Chrysler New Yorker
3.3 cranks but won't start. I can't get any fire to the plugs. I have replaced theCrankshaft Position Sensor and PCM both used parts also a new coil pack. It ran briefly and I was able to restart it several times then it hasn't ran since. Using the engine check light I keep getting a trouble code of 355 which belongs to nothing I can find. I have charged,disconnected reconnected the battery several times. I don't have a scan tool and parts of course are expensive. Please help.
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Posted on Jan 02, 2017
SOURCE: Dear Expert, I have
Hello, I saw your problem and want to suggest several things which other car makers have on their A/C systems and to comment on the Emission problem.
First, the Climate controls on some A/C units have their own self-diagnostic routines and Codes. This means you use the A/C digital display to find out the problem in the unit. The Codes are also different from the engine and pollution Codes. The routine is started by punching in a combination of the keys. For instance, press and hold the Cold key on the temperature while pressing and holding the Recirculate key. (Not the actual buttons, but to Illustrate). This sends the A/C control head into a self-diagnostic cycle. It will make the Display flash as it "thinks", then it will flash the Code for the defect. It will blink the number Code.
This may be similar to the LED's you see on your brand of car. It is worth investigating. I found my Codes and Self-diagnostic sequence by using the Browser and you may be able to get this info free by searching the Internet. It worked for me for my Mercury.
The Emission problem requires a "smoker machine" to locate the open hoses. I am not familiar with Chrysler, but I would think the LDP pump must shutoff after a Vacuum level is reached. Since you have a continous leak you keep burning out the LDP. On some cars the gascaps leak, or vent hoses from the gas tank and to the Evaporator canister will leak. One area I would look at are Emission parts that require your vehicle to be in gear and traveling at a minimum speed or RPM.
This would explain the difficulty in finding a fault while the van is in Park and sitting in a Service bay. Some Emission controls do not operate until the van is underway. I hope this was informative for you.
Posted on Oct 30, 2010
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