QuestionQUESTION: I contacted you before about my 95 cirrus with Error code 66. I replaced the the TCM
as per your advice and it shifts properly now. Unfortunately it began to stall
occasionally even before I replaced the TCM.
The ignition key code readout is 54 - My book says that is a distributor problem. I
took it to a local auto electronics guy and he says the only error code I have is
for a camshaft sensor(part of the distributor). I did not believe it at first
because I had just had the distributor replaced a few months ago.
I also noticed my car runs hot and the radiator fans don't operate. I see on several
other threads that people complain about their Cirrus running hot and then cutting
out. Is over heating related to camshaft sensor damage?
I made a simple system to run the high speed fan off the battery while I am driving
but the temperature still goes a little higher than usual and the car still cuts out
every now and again.
The garage that replaced the distributor says they will try to get me another one on
warranty but I wonder if the overheating is really the problem.
I saw on another thread where you advised that the rad fans, A/C and some other
things were on the the same circuit going through fuse position number 20 under the
dash. I can't find a fuse box under the dash, but there is one on the side of the
dash by the drivers side door. It only goes up to fuse 19. Do you know where the
fuse might be located or what steps I might take to get my A/C and rad fans working
again?
ANSWER: In the '96 manual I have the fans main current comes via fuse 19 that supplies the fan relays in the power distribution box under the hood next to the battery; and the power to switch 'on' the fan relays comes from fuse 9 in that same box. So check both those out to begin the process. It is possible that the distributor is getting too hot for the cam sensor to function reliably so see if you can correct the temperature overshoot. It is good that the distributor can be replaced under warranty if necessary.
Roland
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QUESTION: fuses are okay. I can't find the fan relays.
I changed heat sensor and theremostat. Fans still don't work.
Does the BCM control the rad fans?
They will give me a new distributor on warranty. I have to pay half the labor.
ANSWER: The fan relays are in the power box under the hood, but they are hidden in a lower section at the very rear of the box. You may have to remove the air duct to the throttle body to get to where they are so you can see them. They are the last two in the box. The fans are controlled by the pcm based upon the coolant temp sensor reading and also they will come on automatically if you ask for AC. So look again. The one on the passenger side is high speed the one on the drive side is low speed fan relay. Do the fans come on when you try AC? If not then try switching the relays. Also, measure the fuses to be sure they are good using an ohmmmeter.
Roland
---------- FOLLOW-UP ----------
QUESTION: I replaced the temp sensor and thermostat. It seems to run well now even without the new distributor.
The relays on the A/C fan and rad fans all seem to be good. The fans do not come on when the A/C is turned on.
AnswerHi Herman
I was in error about the fans coming on always immediately with the AC being activated. Rather the case is the fans will come on if either the temp of the coolant hits 99 C or the pressure of the AC refrigerant reaches a threshold or if the temp of the transmission oil reaches a higher yet threshold temp. And the high speed fan will be called upon at higher set points than for low speed. You may notice that the fan comes on at a slightly lower gauge reading when you are using AC than when you are not using AC.
So as long as the fans come on when you are using AC when the coolant temp gauge is pushing on to the upper half of the range I would say everything is fine now. Good work!
Roland
