Check Engine Light

[Bravada 97]

Hi, I just recently drove my 97 Bravada from Ohio to Colorado. It was a 1500 mile trip. It ran fine the entire time and the temp was in the normal range. The next day I noticed that the "service engine soon" light was on. I checked the coolent and it was very low. So I went to autozone and had them check the codes just to be sure. The reading they got when they checked it out was that the engine coolent temp was high.

I filled up the coolent back to the proper level but the service engine soon light still stays on. Is that normal? I thought it would turn off once the coolent was replaced back to it's normal level.

Thanks for any help as it is greatly appreciated.

[ericn1300]

what does your tempurature guage show? If you rember the code I think chris has the service manual for that year.

Autozone won't clear DTC's anymore here either, they just read them for you. I bought my own OBDII reader that will reset the codes from Harbor freight for $30. the mechanics around here all want 40 to 75 bucks to reset it. It's on sale again, coupon here: http://www.harborfreightusa.com/usa/...6_retailB.html

[Chris Stewart]

Get the code and we'll check.
I recently found mine with the coolant jug low so I topped it off and went for a "get it hot test ride". When I got home, I shut it off and put a big piece of cardboard under the whole engine area under the front of the car. Under high pressure, no leaks. Whew!!!
After letting it cool down enough that the radiator hose was soft, I started the engine and got one drop then another under the middle of the engine.
Rats! After looking, the drop was coming off the engine right behind the harmonic balancer ...you're right Eric! Water pump.
After removing the fan belt, I disconnected the AC compressor mounting bolts (13mm) so the AC lines laying on the top half of the fan shroud could be moved a little then removed the top half fan shroud.
There's a big nut you have to screw off the pump on this one. I used a piece of steel with a hole in it with a water pump pulley bolt through it to hold the fan stationary while turning the nut COUNTER CLOCKWISE to loosen and remove the fan. I've been told since that a punch on the left side of a flat on that nut motivated with a sharp hit with a hammer will have that nut spinning loose.
4 water pump pulley bolts & 4-15mm water pump bolts later and I had that baby in my hands. After cleaning the old gaskets off the motor block until it shined, I installed my new pump...they wuz outta rebuilt ones.
Put everything back on and poured in new Prestone long life....like there was anything wrong with the new stuff poured in after the intake manifold change last year and the radiator change the year before.
Just a point here. I looked at the waterpump holes in the motor block and there was shiney gray iron, no rust what so ever.

[Bravada 97]

Since filling the fluid level back up yeasterday it has not dropped at all. When I started the car today the service engine light was also no longer on.

[ericn1300]

Originally Posted by Bravada 97

Since filling the fluid level back up yeasterday it has not dropped at all. When I started the car today the service engine light was also no longer on.

some codes require a few drive cycles without the problem recurring before they clear. you might want to get the cooling system pressure tested to head off any breakdowns. also change the radiator cap, it's probably origional and cost less than 10 bucks.

[ericn1300]

[quote=you're right Eric![/QUOTE]