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Dashboard light coming on after head gasket was fixed

After head gasket was replaced, light starting coming on saying 'service engine soon'. no engine problems but i'm wondering if egr is attached or located near head gasket and if that could affect problem? i've taken it back to shop several times and they say the egr has loose connection. never was before work was done.

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You must read the codes to find out what it is. Get the manual 17 bucks autozone. Then read the codes and look up problem. The manual will tell you exactly how to read the codes, its real simple, you can do this. My guess is that there is a vacum leak. A simple test is to start the engine and spray a little intake manifold cleaner near different areas of the engine. listen carfully should you hear a change in rpm you have found the leak good luck.

Posted on May 11, 2009

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I reset engine management light and within minutes light comes on

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1997 Oldsmobile Silhouette. White smoke out of tailpipe ,running rough and service engine soon sensor flashing. I shut it off now it won't turn over. I don't have a clue what it could be! Do you...

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1993 ls400 is starting however it is smoking heavily. the oil and filter was changed and the coolant topped off. the engine light is not on and the dashboard light is going off and on. any ideas???

You don't say what color the smoke is.

Blue smoke means the engine is burning oil, so it has very worn internal parts inside. (lots of miles, or very poor maintenance) Not a thing you can do about this, except rebuild the engine, or replace the engine.

Black smoke means that the engine is running too rich, getting too much gas.- Get a complete tune up.

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My engine keeps on over heating in the dashboard area my service engine soon keep coming on i try flushing the radiator but i don't think that in doing it i did it right.


Ensure that fan is coming on. If fan is not working at all check fuses and test the fan.

If fan is OK but does not start, or start when already overheating, then replace the thermostat.

If the thermostat does not fix the problem, then your head gasket may be starting to go. Do a compression test.

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What will prompt the service engine soon light in

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My temperature gauge is sporadic at best. I recently had my head gasket replaced but I suspect mediocrity in the workmanship. My service engine soon light has been on since it was returned. there is a...

White smoke is that you are burning water and its coming out the exhaust pipe and its STEAM,also your engine is still missing on at least 1 or more cylinders which means
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