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

13,135

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.
1,295

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.
251,585

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

13,135

That is good......

Your Answer

Cougar

Looking for a Used Cougar in your area?

CarGurus has 212 nationwide Cougar listings starting at $1,421.

ZIP:

Mercury Cougar Experts

  • #1
    lisagayle
    Reputation
    2,200
  • #2
    Tom Demyan
    Reputation
    770
  • #3
    Jessica Cornelison
    Reputation
    600
View All

Related Models For Sale

Used Ford Mustang
756 Great Deals out of 41,941 listings starting at $1,300
Used Chevrolet Camaro
433 Great Deals out of 31,750 listings starting at $2,395
Used Ford Thunderbird
16 Great Deals out of 1,108 listings starting at $6,950
Used Chevrolet Corvette
291 Great Deals out of 22,034 listings starting at $2,500
Used Chevrolet Monte Carlo
12 Great Deals out of 1,372 listings starting at $995
Used Mercury Grand Marquis
31 Great Deals out of 1,725 listings starting at $1,700
Used Dodge Charger
430 Great Deals out of 27,767 listings starting at $1,650
Used Ford F-150
2,167 Great Deals out of 181,221 listings starting at $1,000
Used Chevrolet Impala
579 Great Deals out of 34,601 listings starting at $1,250
Used Pontiac Firebird
13 Great Deals out of 812 listings starting at $1,900
Used Honda Civic
831 Great Deals out of 77,025 listings starting at $900
Used Buick Regal
156 Great Deals out of 9,804 listings starting at $999

Used Cars For Sale

2000 Mercury Cougar For Sale
30 listings starting at $1,421

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.