My 1993 3.2 SHO has been leaving me stranded after it warms up. The car runs great and just shuts off without notice. It will crank but not start. Sometimes I make multiple trips in a day with no problems. But when it does stall, it always takes a cool down of 30 to 45 minutes before it will restart. I am familiar with the water pump issue and how it can leak down onto the crankshaft sensor. But the water pump is not leaking and there are no fault codes stored. As of today this has happened to me four times. Each time there has been no faults stored. So far I have tried a new ignition control module and an used ignition coil. The last time it stalled I had time enough to check a few things. Using a fuel pressure gauge, i determined the fuel pressure was good. I checked the spark plugs and noticed that the was no spark to any of them. I also determined that I had 12 volts going into the coil pack. My thoughts are turning towards the PowerTrain Control Module. Does anyone know how to checkout a PCM using a multimeter Or have any ideas on other possible causes. Thanks for your help.
SHO stalls and require a cool down before restart
- Thread starter 32sho
- Start date
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TimboSHO
Intermediate
Personally I've never had a water pump destroy a crank sensor, and only had one sensor that threw a code when it puked. But I am 99% sure that it is your crank sensor, because that controls your spark. No signal from the crank sensor = No spark. There are some tests you can do, but I can't find the instructions online anymore. If you can find the pin out to the crank sensor harness, you may be able to check if it's getting a signal with a meter.
Dirk37
Mr. Resourceful
Just like TimboSHO said I'm almost positive that's your crank sensor. My car did the exact same thing when the sensor was going, it would shut off randomly then once it cooled down it would work fine. Replacing that sensor solved the shut off problem instantly. I was also losing my tach randomly which I fixed by replacing the camshaft position sensor.
How many miles are on your car? Mine crapped out around 122k
How many miles are on your car? Mine crapped out around 122k
I looked over my maintenance log for this car and it has been about 6 years and 60,000 mile since my last crank sensor replacement. Changing the Crank Sensor is not that difficult or expensive. I thought there would be a fault code for a crank shaft sensor and for that reason I found myself going in a different direction.
Thanks for getting back on track with changing out the Crank Sensor. It was not too difficult to do, but did have to depin and reassemble the large connector and inorder to feed it behind the camshaft aft cover plate. So far, after two days of hard driving, i have had no futher problems.
msteiny
Active Member
That's typical. Had to do the same on many occasions.
crankshaft sensor problems
hello,sorry to ask but i was wanting to know if the plate that the sensor reads could be found and replaced. i was replacing the sensor on little sleep and at 3 in the morning and i put in on backwards (yeah im a *******) and it bent the plate i've bent it out for the most part but its not straight and keeps slipping the timing belt off and i'm getting tried of lining everything up to realize its not 100%. if anyone could help me out with any info i would greatly appreciate it. the water pump was leaking on the sensor and i replaced the belt both cam and crank sensors and the water pump.im not in too much of a hury its a side project for when i start driving by myself.its a mosstly stock 93 sho mtx white car with white slicer rims.thanks
hello,sorry to ask but i was wanting to know if the plate that the sensor reads could be found and replaced. i was replacing the sensor on little sleep and at 3 in the morning and i put in on backwards (yeah im a *******) and it bent the plate i've bent it out for the most part but its not straight and keeps slipping the timing belt off and i'm getting tried of lining everything up to realize its not 100%. if anyone could help me out with any info i would greatly appreciate it. the water pump was leaking on the sensor and i replaced the belt both cam and crank sensors and the water pump.im not in too much of a hury its a side project for when i start driving by myself.its a mosstly stock 93 sho mtx white car with white slicer rims.thanks
