1985 K5 Silverado Blazer backfiring issues
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1985 K5 Silverado Blazer backfiring issues - 11/4/2007 12:51:18 PM
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Dibsing
Posts: 1
Joined: 11/4/2007
Status: offline
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Hey guys
Been having a horrible week with my new blazer i bought. Its a 1985 K5 Silverado Blazer, auto (3 speed auto w/ od), 350 (not original motor).
When the truck starts it idles fine at around 750, and when you put it into gear the passenger side exhaust pops/backfires. It only occurs on the passenger side not the driver side at all.
I have done to try and fix it
-new plugs
-new wires
-rebuilt carb
-timing is set
-firing order is correct
-vaccume is at 24 '' Hg in P/N, 20 with brakes on, and around 14''Hg in R/D/1/2 with brakes on
I do have a leaking brake booster, but i had redone the header gaskets and put them back on the truck and now it is all messed up again. It was not backfiring at all before i took off the headers to put in the new gasket
Any info would be greatly appericiated
Dibsing
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