Why does left side of engine have weak spark?

Asked by Apr 03, 2016 at 06:46 PM about the 1993 Ford Mustang LX Convertible

Question type: Maintenance & Repair

Car has two coils and won't start

3 Answers

109,655

Intake coil maybe weak, but if the exhaust side is strong it should run if it is getting fuel, injector pulse and has compression.

Engine was running fine when it turned off so I assume compression should b good enuf to turn on. Engine cranks and kinda sounds like it's gonna turn on. I replaced the coil for weak side and nothing changed.I unplugged the fuel line and it has high pressure

109,655

get some starter fluid and spray some in the intake hose and see if it fires off briefly, if it does then you have a fuel problem, possibly something wrong in the injection circuit. If it doesn't then as you seem to have spark then the only thing it can be is the spark is out of time, possible crank sensor. HTH

Your Answer

Mustang

Looking for a Used Mustang in your area?

CarGurus has 42,379 nationwide Mustang listings starting at $1,488.

ZIP:

Ford Mustang Experts

  • #1
    Tom Demyan
    Reputation
    4,880
  • #2
    F_O_R
    Reputation
    1,400
  • #3
    Bob Beaman
    Reputation
    1,390
View All

Related Models For Sale

Used Chevrolet Camaro
398 Great Deals out of 31,474 listings starting at $3,495
Used Chevrolet Corvette
114 Great Deals out of 16,070 listings starting at $3,995
Used Ford Mustang SVT Cobra
5 Great Deals out of 264 listings starting at $4,795
Used Ford F-150
3,046 Great Deals out of 230,457 listings starting at $1,300
Used BMW 3 Series
1,117 Great Deals out of 34,033 listings starting at $1,209
Used Jeep Wrangler
362 Great Deals out of 20,473 listings starting at $2,500
Used Honda Accord
818 Great Deals out of 88,083 listings starting at $1,444

Used Cars For Sale

2018 Ford Mustang For Sale
16,828 listings starting at $19,995
2017 Ford Mustang For Sale
75 Great Deals out of 7,937 listings starting at $15,799
2016 Ford Mustang For Sale
45 Great Deals out of 2,550 listings starting at $12,391
2015 Ford Mustang For Sale
28 Great Deals out of 2,416 listings starting at $11,995
2014 Ford Mustang For Sale
50 Great Deals out of 2,260 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.