Chrysler Cirrus Car Questions Answered by Mechanic-On-Duty – 17 Messages

24 Jul 2014 | Author: | Comments Off on Chrysler Cirrus Car Questions Answered by Mechanic-On-Duty – 17 Messages
Chrysler Cirrus

Chrysler Cirrus

1997 Chrysler Cirrus Ignition System

New User Asked – My ’97 Cirrus will not start. There were 3 occaisions where the engine stopped after driving an hour or more at highway cruise speeds. RPM’s went immediately to zero.

Dead. It would not restart. I left the car and came back in the morning. The car started normally the next morning. The third time this happened, the car stayed dead.

I have done some troubleshooting.

1) the starting motor cranks normally

2) the car starts and runs very roughly when I spray starting ether into the intake. It stops when it runs out of ether.

3) there is no electrical power to the fuel pump. When I snake a 12 volt wire to the fuel pump, the fuel pump runs fine. Then I attach a voltmeter to the fuel pump connector, it always reads zero voltage.

Connecting a 12 volt wire to the fuel pump makes it run, but the car does not start.

This makes me believe there was a heat related failure. Either the engine computer or a sensor began failing when it got hot. and is now mortally dead.

After the first two failures, I connected an OBD reader to the diagnostic connector on the car and it showed NO faults. I have not tried again after the third failure.

Your thoughts?

— Tinman

Bruce Kit – Hard to diagnose without setting codes. Crankshaft position sensors have symptoms very similar to yours, so that would be a good place to start.Last one I replaced also set no codes.

New User – OK. how do I test the crankshaft position sensor to see if it’s bad? (The car doesn’t run now.)

Please advise.

Bruce Kit – I use a volt/ohm meter but some just change the sensor if it can be found in your area cheap.

Mine had erratic hard stert problems that progressively worse, progressing to no start.

I just replaced it and its been trouble free for over a year, which was an improvement to no hot start every 3nd day!

Chrysler Cirrus

New User – Have been too busy to work on the car. Am back on it now.

The sensor is getting power from the PCM. I checked.

The signal across the sensor should vary from 0.5 volt to 5 volt when cranking the engine with the starter. NOT. The signal across the sensor is 0.0 volts with the ignition switch off.

When I crank the engine, the signal goes to 5 volts (steady).

Is that the typical failure mode?

Am going to replace the sensor and see if that fixes the problem.

Please advise.

Bruce Kit – You are on the right track Re: testing/replacing the sensor.

New User – Please answer the questions I asked.

Bruce Kit – Yes the voltage should fluctuate as you indicated, not a steady 5 volts.

New User – The sensor broke while removing it. Had to pull the transmission and bang it out from the inside. Sensor is replaced and car runs fine now.

Chrysler Cirrus
Chrysler Cirrus
Chrysler Cirrus
Chrysler Cirrus
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