MISFIRE

1999 Ford Ranger

Tiny

puertorico1963

September, 23, 2013 AT 3:45 PM

The check engine light came on so I put my scanner on it and it said that cylinder 2 and 6 was misfire so I replaced those 2 spark plugs and it still read the same so I changed all the plug wires and it is still reading that cylinder 2 and 6 has the misfire and the truck still has a miss so what could be the problem?

FOUND 5709 RELATED QUESTIONS

Engine Miss

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3 Answers

Tiny

saturntech9

September, 23, 2013 AT 3:57 PM

Have you checked the compression on those cylinders?You made sure you had a nice blue spark on those two cylinders?

Tiny

puertorico1963

September, 23, 2013 AT 4:15 PM

Yes I have did this and the compression is good on both of them. It only missing while its idle but when I run it on the road it runs fine but when I stop at a red light it misses again

Tiny

saturntech9

September, 25, 2013 AT 1:35 PM

We need to look for a vacuum leak

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