Guys I have a 1986 lx 3.8 it is smoking white smoke

25

Asked by Jun 07, 2013 at 08:27 PM about the 1986 Ford Mustang LX Convertible

Question type: Maintenance & Repair

Guys,
I am at a loss, I purchased a 1986 mustang 3.8 lx convertible.It smoked under load.
I replaced the heads all gaskets and ran a pressure test and compression test (all Good)
Started engine ran perfectly except for the white smoke.Can you help? Thanks

5 Answers

275,875

Probably your piston rings are shot if in fact the engine got too hot from your head gasket leak. But your compression numbers were good? hmmmm. One way to check if they are bad is when the engine is running, take off the oil filler cap and there will be a huge gush of air flowing out at you. Using thicker oil might be a temp. solution in your case.

1 of 1 people found this helpful.
110,015

How long did you let the engine run? I am thinking that maybe the catalysts might have coolant in them, if that is the case then it will take quite a while to get it burned out of them. Also be aware that the O2 sensors might just give up they don't like coolant in the exhaust.

1 of 1 people found this helpful.
26,955

Ya know, these guys covered it well but the first thing that came to my mind is a blown out diaphragm on a fuel pressure regulator. Easy to check - pull the vacuum line on the regulator and see if any gasoline comes out of the vacuum line. DO NOT DO IT WITH A RUNNING ENGINE! If it is blown, there will be a considerable amount of gasoline present - you can't miss it. Way too much fuel will smoke white like that too.

1 of 1 people found this helpful.
25

THANKS GUYS FOR YOUR HELP

Have you tried letting of the gas , maybe getting rid of the racing slicks ???

Your Answer

Mustang

Looking for a Used Mustang in your area?

CarGurus has 41,500 nationwide Mustang listings starting at $1,488.

ZIP:

Ford Mustang Experts

  • #1
    Tom Demyan
    Reputation
    4,900
  • #2
    F_O_R
    Reputation
    1,410
  • #3
    Bob Beaman
    Reputation
    1,390
View All

Related Models For Sale

Used Chevrolet Camaro
358 Great Deals out of 31,467 listings starting at $3,495
Used Dodge Charger
305 Great Deals out of 35,594 listings starting at $1,999
Used Chevrolet Corvette
109 Great Deals out of 16,236 listings starting at $3,995
Used Ford F-150
2,943 Great Deals out of 230,828 listings starting at $1,300
Used BMW 3 Series
1,080 Great Deals out of 33,894 listings starting at $1,209
Used Jeep Wrangler
376 Great Deals out of 20,576 listings starting at $2,500
Used BMW M3
25 Great Deals out of 1,816 listings starting at $5,495

Used Cars For Sale

2018 Ford Mustang For Sale
16,592 listings starting at $19,995
2017 Ford Mustang For Sale
83 Great Deals out of 7,888 listings starting at $15,799
2016 Ford Mustang For Sale
47 Great Deals out of 2,492 listings starting at $12,391
2015 Ford Mustang For Sale
28 Great Deals out of 2,376 listings starting at $12,000
2014 Ford Mustang For Sale
36 Great Deals out of 2,151 listings starting at $8,998

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.