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Running rich

Tiny
LANDSMAN0
  • MEMBER
  • 1988 MERCURY COUGAR
  • 3.8L
  • V6
  • 2WD
  • AUTOMATIC
  • 34,000 MILES
Dumping fuel, replaced all spark plugs and fouled out to the point she would not start. Did top end cleaner through the throttle body with mas and other sensor at throttle body disconnected. She blows black smoke. Also, Chilton does not have information for location of parts. Any recommendations for books for this car? I did a Carfax on her and it checks out with 34,000 miles. She only had 600 mile last three years. And fuel pump replace two years ago. I just bought it.
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Monday, March 12th, 2018 AT 6:36 PM

3 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Are all injectors staying open? Or is spark very poor and not igniting fuel charge?
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Wednesday, March 14th, 2018 AT 2:23 AM
Tiny
LANDSMAN0
  • MEMBER
  • 2 POSTS
Have spark. Need to check injectors. Read that I can put ohm meter on them and they should read between 10 and 16.
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Wednesday, March 14th, 2018 AT 2:41 AM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
I do not have actual readings to hand but I can see if I can look it up. Ideally you need to get all injectors, out and get them flow tested, this will give you a better idea as to what is going on.
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Wednesday, March 14th, 2018 AT 2:43 AM

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