Here we go.....It was 4 degrees today and my 2002 Bravada had to sit outside
for about 6 hours this evening. When leaving, luckily to only go 2 blocks,
the service engine light came on as well as the "reduced engine power"
I'm sick and tired of paying top dollar for these automobiles, only to have
these types of problems.
Does anyone have any idea why this happened, and if it is related to the
extreme cold? It has 29000 miles, and has never had any major problems
The service engine soon light comes on for many reasons. Last year I took a
Trailblazer to a customer about 50 miles from my dealership. It drove fine
he whole way there. I let the customer take it for a test drive and they
came back with the service engine soon and reduced power light on. I called
my shop manager and he said if it will drive bring it home. I got back in
and it started fine went about 2 blocks and they came on again. When they
got it back to the shop a connector had come loose from the transmission. It
could be that or one reason the reduced engine power comes on is if a loss
of coolant is detected its a way to keep the engine from over heating and
letting you go about 50 miles. Let me know what your shop says the problem
Well, I called Onstar to get a diagnostic check and they said it was code
I then called the dealer and they said it was related to an accellerator
feedback transducer error.
The accellerator position is linearly proportional to a feedback voltage to
the computer. Evidently,
this transducer may have failed or read erroneously. Anyway, the car sat in
a warm garage overnight
and now, everything is working fine and the Service Engine and Reduced
Engine Power lights are off.
I am taking it in for service on Monday, but in the meantime, I suppose the
car can't be used for cold weather.
I have purchased new Ford, GM, Daimler-Chrysler, VW, Volvo and Honda
products over the years. Every one of them has had one of more failures
during the warranty period which required trips to the dealer service
department to get fixed.
It is not unbelievable that something has broken on your vehicle.
Automobiles are complex beasts and things break.
What is amazing is that you have a vehicle which could be diagnosed remotely
by hitting the OnStar button. That is pretty darn cool.
If you think about it, the conditions we expect a vehicle to operate in
with no problems is amazing. 0 - 100 degrees F or more. Thermal
variation is one of the big problems with electronics and controls.
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