1990 Ford Bronco engine is missing when accelerating

Tiny
JOHNFMB
  • MEMBER
  • 1990 FORD BRONCO
Engine Performance problem
1990 Ford Bronco V8 Four Wheel Drive Automatic

I have replaced the spark plugs, plug wires, dist cap and rotor what should I try next the coil? It is still missing and chuggingalthough not near as bad. Also read here about disconnecting egr valve I will try this, what is an easy way to check the coil without a meter?Still missing and chugging I unplugged the egr valve and it didnt seem to make a difference. Added gunk out injector cleaner to fuel will see if that makes a difference. What else do you suggest that I try or do?
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Thursday, July 31st, 2008 AT 10:18 AM

2 Replies

Tiny
MASTERTECHTIM
  • MEMBER
Unplug egr valve. You can buy a spark checker for a few dollars that will let you know the output of it, around 25000 volts.
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Sunday, August 3rd, 2008 AT 6:07 AM
Tiny
JOHNFMB
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I added some gunk out injector cleaner to fuel will see if this helps. Could this missing and chugging be due to a vacumm line leak or similuar, catalitic converter or maybe timing chain.I dont know gettin frustrated dont want to cause more damage?What do you suggest I try next?
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Monday, August 4th, 2008 AT 8:49 PM

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