started to run rough and now has stopped running

1986 GMC SUBURBAN
120,000 MILES
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DAVESALYERS
  • MEMBER
  • 1 POST
As it has gotten colder out my 86 gmc suburban has started to run rough and now has stopped running all together i am getting spark as it will turn over and run for a short time. any sort of advice would be much appreciated. thanks

i have recently(within a month or two) replaced spark plugs and wires, cap and rotor, ignition coil, oil and filter.

the suburban will start up for a few seconds occasionally with a very low idle and the shut off and before it stopped running i was having problems with it running very high rpms as it has gotten colder
Dec 5, 2011 at 8:13 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
It sounds like the spark plug maybe fouled, check this link

http://www.2carpros.com/articles/engine-has-low-power-output

Let me know what you find
Dec 5, 2011 at 8:22 AM
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