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12-01-2009, 11:00 PM
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#1 |
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Registered User
Join Date: Dec 2009
Location: Baltimore MD
Posts: 2
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Engine Idle Trouble
I have a 1995 Suburban, K2500 with a 7.4L engine (this was the closest forum fit). When the engine is cold it idles at about 1500 rpm and when warm it is idling about 1000 rpm and will move at 8 to 10 mph on the level. There are no engine codes, have replaced the throttle posistion sensor, throttle control valve and engine coolant sensor to no avail.
Any suggestions on reducing the engine idle? |
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12-01-2009, 11:43 PM
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#2 |
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Senior Member
Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
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Re: Engine Idle Trouble
Vacuum leaks? Ive found that its the throttle body base plate gasket alot of the time, cracked or broken vacuum lines, leaking intake gaskets, leaking brake booster, Throttle blades not closing. this belongs in the 88-98 forum.
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12-01-2009, 11:46 PM
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#3 |
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Registered User
 
Join Date: Jan 2003
Location: Denison, Texas
Posts: 1,919
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Re: Engine Idle Trouble
clinebarger beat me to it. Like he said, it sounds like a possible vacuum leak. Here is the 88-98 Group:
http://67-72chevytrucks.com/vboard/f...splay.php?f=12
__________________
1998 GMC Sierra SLE 1/2 ton 2WD 305 Vortec -Gibson Stainless Cat Back Swept Side -SS Wheels 2005 Honda CRF250R 2006 Honda CRF150F |
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12-02-2009, 02:29 AM
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#4 |
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Registered User
Join Date: Dec 2009
Location: Baltimore MD
Posts: 2
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Re: Engine Idle Trouble
Thanks for the insights. I will move the post to right forum
Last edited by omega; 12-02-2009 at 02:29 AM. |
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