1986 Mercury cougar, just did a full tune up. Now I am getting like a little backfire and occasionally acts like its not catching gears when I try to accelerate. Is this the tranny?

Asked by Apr 19, 2012 at 11:47 AM about the 1986 Mercury Cougar

Question type: Maintenance & Repair

7 Answers

12,995

The tranny won't make your engine backfire. Occasionally plug wires can get misplaced on a tuneup. This will cause backfire. Not sure what was all involved in your tuneup, but I would retrace those steps and look for an issue with the tuneup. I say all this assuming that the car was fine before the work????

1 of 1 people found this helpful.
1,275

There is 2 possibilities...A plug wire in the wrong area or you also might need to adjust your carb. You might have it adjusted to get to much fuel.

1 of 1 people found this helpful.
246,245

Sounds like a crossed plug wire.

55

Could be wrong plugs or gap , firing order wrong by placing wrong wire on plug or timing could be off.

55

Also it Could be a leak in the vacuum line

Thanks guys.. I took it back today and it was the cross plug wire

12,995

That is good......

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