What would cause my car to trie to overheat but doesn't get to redline heat smelled coming out vents shut motor off popped the hood an there was oil all over front of motor above center spark plug

10

Asked by Jan 26, 2014 at 05:45 AM about the 1998 Buick Park Avenue 4 Dr STD Sedan

Question type: Maintenance & Repair

i have digital dash an the temperature gauge read normal but started to rise an the heat
had a smell coming through the vents got it home an popped the hood an there was oil all
over the front of motor above the center spark plug

4 Answers

69,345

Most likely the intake manifold gaskets have failed. These engines are notorious for that. Pull the oil dipstick. If it has white milky "goop" on it then that's what has happened. You'll want to have both the upper and lower intake manifold gaskets replaced. Also, since the upper intake manifold is plastic it tends to crack. Replace it when you do the gaskets. It comes in a kit. HTH. -Jim

10

Thanx Jim I have googled it an that is the answer I keep comin across. Is that goin be a ugly job?

1 of 1 people found this helpful.
69,345

You're welcome, glad to help. It's pretty involved. Basically the whole top of the engine has to come off. It's about a 6 hour job at a shop. HTH. -Jim

69,345

Oh and after the repair be sure to change the oil and filter twice. The first time drain and add fresh oil before the car is started after the repair. Let it idle for about 30 minutes. Then change the oil and filter again. This will remove any antifreeze contamination from the oil and pevent a spun camshaft bearing. HTH. -Jim

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