Question about 1998 Oldsmobile Intrigue

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Smoke from exhaust; bad cylinder rough running

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You must do a compression check to first identify if the cylinder has a bad valve or worn or broken rings. Obtain a compression tester once you've identified the bad cylinder usually done by inspecting the spark plugs, the bad cylinder will have a dirty plug associated with it do a compression check write it down then sqiurt two or three pumps of oil into the spark plug hole reinsert the tester and note if the compression rises it should only go up at most 10 psi if it goes up considerably more it has bad rings if it stays the same there is a burnt valve. If the compression on all cylinders are 110 psi to 140 psi the motor is doing what ti should and it probably needs valve stem seals or has a broken oil ring these are the only things that cause blue smoke if the smoke is white it indicates a blown head gasket.
hope this helps.

Posted on Oct 05, 2009

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Sounds like a head gasket or warped head. go buy a compression teseter. pull the spark plug wires off. remove spark plugs insert teset. turn engine over 3 times for each cylinder. should be within 10-15 of each other. check dipstick look to see if oil is milky.

Posted on Oct 05, 2009

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SOURCE: I have a 1998 hyundai excel running rough as if

Is the heaps of white smoke come out of the tail pipe LONG AFTER the 15 minutes period?
To pin point a blowing headgasket you will need
1)coolant system compression tester
or
2)chemical reaction test for combustion test gas
If it's the org. engine from 1998,with over 120,000 then blown headgasket is a good possiblity.
Tow it to the shop and let the pro to do the coolant pressure test and combustion gas test.
A full head gasket job with head re-surface (if it can be re-use) is worth it.
Shop around on well estiblished independent shops.

Posted on Aug 23, 2009

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SOURCE: Have Mazda bravo B2600 4WD ,has white smoke &

You dont say weather its a petrol or diesel engine as there a slight differance in the answer and if a turbo on a diesel thats even more of a differance, but taking it a petrol .
Well to start with the white smoke Isent smoke its water and after going through the engine it turns into Steam and thats what you see..
Running on 3 clyinders is caused through 1 cylinder isent working as a engine should and has a bad valve or a broken piston ring or more and even a cracked head and gasket letting the water through,,,also the broken ring works like a oil pump as if not firing given you power then it works like a oil pump and pumps it into the cylinder that dosent work only pumping oil into the hot exhaust system while running.CAUSING SMOKE
And if a turbo then could be the turbo bearings worn and pushing oil into the engine and still doing the same as before.
Let me know how you get on. RON

Posted on Nov 17, 2009

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