Question about 1992 GMC Suburban

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What size do I gap my spark plugs at 92 gmc suburban 1500 5.7 350

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.030 is correct - NOT .045 - WTH?

Posted on Jan 11, 2013

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.045

Posted on Apr 03, 2011

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SPARK PLUG GAP 1996 GMC SUBURBAN V8 4WHEEL DRIVE GAS ENGINE


it should be 0.060 there is an emission info tag possibly on the fan shroud or radiator support that has the gap info in the bottom corner.

Jan 25, 2014 | 1996 GMC Suburban

1 Answer

What tools will I need to change the spark plugs in a 93 GMC Suburban, and is it an easy job?


Tools needed to do a brake job are a hydraulic floor jack, stand jacks, metric and standard size sockets, box wrenches, etc., 6" C-clamp, oil catch pans, and vacuum pump/brake. bleeder------------------------------------------------------------------------------------



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Dec 17, 2012 | 1993 GMC Suburban

1 Answer

What is the gap size on a 1998 gmc yukon


Hi there:
Spark plugs that you buy, should be pre-gapped for this application... 0.60 is the factory gap



Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Oct 04, 2012 | 1998 GMC Yukon

2 Answers

What is the spark plug gap for a 1984 s15 v6


Depending on engine size
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May 29, 2010 | 1984 GMC S-15 Jimmy

1 Answer

Spark plug gap size


Make sure you are using AC Delco plugs and the gap is .035" and may come already gapped on the AC Delcos.

May 18, 2010 | 1993 Chevrolet Suburban

1 Answer

What is the spark plug gap for a 1999 Suburban 5.7L usink NGK plugs?


first off u should use ac delco platnum! wen u open the hood look for the tag that says catalyst it will say engine size ect it will tell you the proper gap!

Apr 02, 2010 | 1999 Chevrolet Suburban

1 Answer

92 gmc 350 pickup....rough idle..have replaced MAP sensor, fuel filter,PCV valve, and idle control on throttle body...still having the problem


This could be a couple of things:
  1. Check that you have not got any vacum leaks between inlet manifold and cylinder head.
  2. Check your spark plugs and HT leads are in good condition and not worn, reset gaps. If worn replace them.
Worse scenario is the head gasket make be leaking water into a cylinder. Get a cylinder leakage test done to verify any manifold air leaks or faulty sealing head gaskets.
Good luck, let me know how you get on.

Apr 02, 2010 | 1989 GMC Suburban

1 Answer

Spark plug gap on a 1992 Gmc Sonoma 4.3L V6 FI


Usually somewhere on the engine or in the engine compartment, there is a sticker with the engine specifications. The spark plug gap should be included. If not .032 or an inch should be close.
Good luck

Jun 26, 2008 | 1992 GMC Sonoma

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