86 Silverado Spitting and Backfire
10

Asked by Chase Mar 26, 2019 at 02:14 AM about the 1986 Chevrolet C/K 10 4WD

Question type: Maintenance & Repair

I have an 86 Silverado that when under a
load (acceleration) it spits and backfires a few
times and then dies. I have changed spark
plugs, done timing, checked air fuel mixture,
replaced the old carb, changed the hei
distributor and it is still backfiring. I believe it
has some electrical issue because when it
dies it blows a fuse under the hood and when
that is replaced it will start right up again. I
am very confused and was wondering if there
was anyway I could pin point the issue.

2 Answers
10

Chase answered 5 years ago

I changed the fuel pump and it helped it hasnt back fired out the carb in all of the test drives but i can still here a little bit of a miss and it is still backfiring out the exhaust.

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