86 thunderbird 5.0 HO misfire in #2

Asked by Jul 17, 2014 at 12:38 AM about the Ford Mustang

Question type: Maintenance & Repair

i have a misfire in cylinder # 2 at idle and low rpm. i have replaced the spark plugs and
checked the gaps on them (.045), changed the injector and o-rings, wires, coil,
distributor cap and rotor, upper manifold gasket, throttle body and EGR gaskets,
checked and replaced almost all vacuum lines, purge valve and still having the
problem. the misfire is followed up by a ping in the exhaust and only does it at idle and
low rpms. if i remove the spark plug wire for cylinder #2 the ping in the exhaust goes
away and the car seems to be running smoothly like there was never a miss at all.
when i removed the EGR there seems to be coolant in it as well.

4 Answers

292,785

If coolant is in the EGR, the throttle body gasket to the EGR plate is compromised and needs to be replaced. Some people take the coolant lines that go to the spaces and plug them. So you are leaking coolant into your engine and burning it, and that might be giving you your misfire code.

292,785

FEL-PRO Part # 70261 Throttle body to EGR valve = $2

292,785

When you replaced the throttle body, I assume you replaced this gasket? If you did, then I'd suggest doing a leak down or compression check of all cylinders.

I timed it last night and it seemed to help alot then it started to act up again and now there is no power in any gear and it will spit and sputter and the car will drop really low in rpms and cut out

Your Answer:

Mustang

Looking for a Used Mustang in your area?

CarGurus has 37,436 nationwide Mustang listings starting at $1,350.

ZIP:

Ford Mustang Experts

  • #1
    Tom Demyan
    Reputation
    5,060
  • #2
    F_O_R
    Reputation
    1,530
  • #3
    Bob Beaman
    Reputation
    1,430
View All

Related Models For Sale

Used Chevrolet Camaro
233 Great Deals out of 27,296 listings starting at $2,077
Used Dodge Challenger
141 Great Deals out of 24,042 listings starting at $7,995
Used Dodge Charger
280 Great Deals out of 31,968 listings starting at $1,850
Used Chevrolet Corvette
91 Great Deals out of 15,032 listings starting at $3,620
Used Ford Mustang SVT Cobra
5 Great Deals out of 236 listings starting at $4,999
Used Ford Shelby GT500
458 listings starting at $25,977
Used Ford F-150
2,280 Great Deals out of 208,575 listings starting at $1,300
Used Ford Shelby GT350
1,674 listings starting at $43,991
Used BMW 3 Series
856 Great Deals out of 31,256 listings starting at $1,250
Used Jeep Wrangler
225 Great Deals out of 16,708 listings starting at $3,000
Used Nissan 370Z
33 Great Deals out of 1,953 listings starting at $9,990
Used Chevrolet Silverado 1500
1,780 Great Deals out of 153,003 listings starting at $1,000
Used Nissan 350Z
30 Great Deals out of 982 listings starting at $3,999
Used BMW M3
21 Great Deals out of 1,481 listings starting at $6,399
Used Honda Accord
552 Great Deals out of 102,993 listings starting at $950

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.