Question about 1989 Mercury Sable
1989 Mercury sable 3.0L will run ok for a bit then runs rough and the idle eventually goes down and dies. Spark good and fuel pump pressure is in the upper 30's. Could the catalytic converter or bad dirty fuel injectors cause this or what else? It has under 90,000 miles. Please help! Thanks
Sounds like you might have a stuck open EGR valve. Is the check engine light on. I would replace the fuel filter if it hasn't been replaced, also check the air filter.
Posted on May 31, 2010
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Posted on Jan 02, 2017
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