Question about 1989 Jeep Cherokee
Now it blows thick black smoke and sputter really bad. Changed the oil and air filter as well.
MAY HAVE DISLODGED SOMETHING WHEN YOU CHANGED THE AIR FILTER??? COULD BE WRONG VICOSITY OF OIL, WHAT I MEAN IS IF YOU USED A REALLY THICK OIL SUCH AS 20-50 THEN THAT WILL ALSO CAUSE ISSUE. DID YOU HAVE TO DISCONNECT ANYTHING TO GET AIR FILTER OUT THAT MAYBE YOU DID NOT RECONNECT? YOU MIGHT PULL AIR INTAKE BOX OFF AND CLEAN REALLY WELL. CHECK THE T.B.I UNIT TO MAKE SURE THE INJECTOR WIRES ARE BOTH STILL HOOKED UP AND NOT GROUNDING OUT, GM AND CHRYSLER WERE BAD FOR THIS HAPPENING IN THE LATE 80'S. THE WIRES GO BRITTLE FROM THE FUEL AND SNAP OR CONDUIT FREYS. CLEAN OUT WITH A GOOD AIR INTAKE CLEANER THEN TRY AGAIN. LET ME KNOW THE OUTCOME.
Posted on Mar 03, 2009
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Posted on Jan 02, 2017
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i believe the engine is running too lean as if it was running too rich it would blow black smoke If it was blue smoke it is oil related eg valve stem seals,valve guides and or piston rings all of these things will create blue smoke if one of the above is worn out
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