Question about 1993 Chevrolet Suburban

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1993 suburban idles rough and fluxtuates sometimes

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Has it been tuned regularly,check air filter vacuum lines,and try some fuel cleaner with some good gas.I use Chemtool Injection cleaner 12oz. to half tank gas for best results

Posted on Oct 04, 2009

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Posted on Jan 02, 2017

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Better get this one to a mechanic. Sounds like you blew a head gasket.

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I too have brand new 2012 Chev Suburban with rough idle. Dealer says "operating as designed" but admits to lots of complaints.
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Car idles rough sometimes,and the abs and check engine light comes off and on


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No way to be specific for all the ground leads.... Follow the main lead off the battery and obviously look for any connectors that are connected to the frame/chasis and check for corrosion!!

Mar 23, 2010 | 2003 Chevrolet Suburban 1500

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Idels rough and stalls at lights changed plugs checked wires cleaned throttel body and changed fuel filter still does same thing fuel pressure seems good


go to Auto Zone and ask for a free scan of your engines computer. the tps and idle air control sounds like your problem

Feb 21, 2010 | 1993 Chevrolet Suburban

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Rough idling when cold


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Mar 14, 2009 | 1993 Chevrolet Suburban

1 Answer

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sounds like bad Idle Air control valve Not Cheap


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