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GMC
Sierra
Engine
Symptoms
Idle High
GMC SIERRA ENGINE IDLE HIGH
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Found 9 results
Why Does My Truck Idle Too Fast, Then To Slow?
I Have Replaced All Vacuum Lines, Replaced The Following: Egr Valve, Tps, Iac, O2 Sensor, Rebuilt Throttle The Body, Replaced The...
Asked by
Jacob844
·
22 ANSWERS
1 IMAGE
1987
GMC SIERRA
VIDEO
Vacuum Leak Test and Repair
Instructional repair video
GUIDE
Vacuum Leak
An automotive engine heavily relies on a sealed vacuum system to help monitor and optimize the engine's performance, when this system fails and leaks emerge performance ...
RPMs Rev Up High And Shifts Rough?
What The Subject Says. Driving Off In The First Gear It Drags Out The Rpms And Then Shifts Really Rough. All The Gears Do It But First Is...
Asked by
Jacob Marino
·
19 ANSWERS
3 VIDEOS
2 IMAGES
2003
GMC SIERRA
Why Is My GMC Sierra Idling High When I Come To A Stop...
I Have A 2000 Gmc Sierra 1500 5.3 And I Recently Changed The Iac And The Tps And Cleaned The Egr And Maf Sensors And It Fixed The Problem Of...
Asked by
tylercovell
·
13 ANSWERS
2000
GMC SIERRA
1989 GMC Sierra Fast Idle After Engine Is Warmed Up
Engine Turns Over For About 10 Seconds Then Finally Starts Seems To Run Ok And Restart Ok But Won't Come Off Fast Idle Engine Is At...
Asked by
swordfish
·
3 ANSWERS
1989
GMC SIERRA
VIDEO
Is it Safe to Drive Check Engine Light?
Instructional repair video
No Fast Idle When Cold
2006 Gmc 5.3 No Fast Idle When Cold Starting, Thus No Heat From Heater
Asked by
stevie j
·
1 ANSWER
2006
GMC SIERRA
1992 GMC Sierra High Idle
Checked For Vacuum Leaks With Carb Cleaner Car Begin To Idle High When Cleaner Was Sprayed On A Diaphragm Looking Item Just Below Carburetor...
Asked by
raiderrob
·
1 ANSWER
1992
GMC SIERRA
GUIDE
Vacuum Leak Symptoms
We have created an in-depth, technical step-by-step guide to understanding the symptoms of an automotive engine vacuum leak. A vacuum leak occurs when air enters the engine...
1992 GMC Sierra Idle Is To High
When Starting Truck Idle Is High After A Few Minuets Idle Goes Down To 1500 Rpms In Neutral After Driving When Stopped In Gear Idle Goes...
Asked by
raiderrob
·
3 ANSWERS
1992
GMC SIERRA
Idle Speed On My 1996 GMC SIERRA Pickup Is Very High...
Its A 5.7 Engine And The Idle Speed Is Very High Always And Theres Nothing Sticking That I Can See.
Asked by
hives
·
2 ANSWERS
1 IMAGE
1996
GMC SIERRA
High Idle?
At Startup, 2,000 Rpms, After A Few Minutes, 1,300 Rpms, In Gear With Brake 1,100 Rpms, Let Off The Brake And Just Apply Throttle And...
Asked by
Boofer22811
·
1 ANSWER
1992
GMC SIERRA
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