Question about 1989 Dodge Dynasty

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Runs great but smokey can i fix this - 1989 Dodge Dynasty

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If it's the 3.0L engine, they were well known at that time for valve seat, guide and seal problems. Provided you have checked for other possible problems via compression test to verify rings are o.k., I'd be looking at having heads re-done, or pick up a rebuilt set if car has a few years left in it. Basically if cost is justified. You may be able to get a used set off a newer 3.0L , that has had that corrected already. Can't remember exactly what year Chrysler corrected it, but recycler (wrecking yard) should have that info in their books, or on computer. A good,reputable, automotive machine shop should be able to pull covers and check for you to see if the possibility of seals only is in order, and they can be done without removing cylinder heads.

Posted on Oct 11, 2010


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Very smokey when started from cold

If it's the org. engine it will has over 90,000 miles on it.

When was your last valve adjustment?

Timing belt is due if it's over 120,000 miles. Incorrect timing will cause late timing.

Can your shop do a compression test?

It's normal to has the valve stem seal/oil seal on the head to leak oil into the cyclinder.
The smoke you see is the motor oil drop from the seals. It land on the top of the cyclinders and it create black smoke at start up.

The inexpensive fix is to start using high mileage oil with seal conditioner.

This will help soften the rubber seals and help reduce internal oil leak.

The correct fix is to wait until it's time for a head gasket replacement and let the professional service the head.

Complete head service is the only method to stop this internal oil drip problem.

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