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1989 Dodge Grand Caravan SE Wagon

1989 Dodge Grand Caravan
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November 26, 2012, 9:07 am

C C
 

Question: cause of self reving?

i have an 89 dodge grand caravan that when the coolant sensor is plugged in, it dies. either it wont restart or it will drive a little ways then stall out.. and it also self revs, non stop. i have even stopped for a person crossing the road and it reved forward, thought i was going to hit the person. what could it be and is it non mechanic fixable?


December 6, 2012, 8:50 am

Elizabeth K
Expert Mechanic

First, test the coolant temp sensor and circuit to see if that is why the engine is dying. If it's bad, fixing it may resolve all of your problems. If it's not bad, your problems are caused by something else (likely a different sensor). Is the check engine light on? If so, have it scanned for codes, but interpreting them with the coolant sensor unplugged might be misleading.

Unless you're ready to delve into learning all about electronic sensors and how to test them, I recommend you take the car to a reputable shop and have them diagnose the problem--probably will cost around $100. From there, you can determine whether you want to perform whatever repairs they find, or have them do it.

The biggest problem in situations like this is making an inaccurate diagnosis, and the added cost of buying parts you never needed.


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