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Thread: 98 camaro cold idle problems
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12-08-2010, 06:21 AM #1
- Join Date
- Dec 2010
- Location
- townsend, mt
- Posts
- 18
white- 1998 Z-28 camaro
98 camaro cold idle problems
Hi everyone. I'm new to this forum and a first time owner of an ls-1. Having problems with my camaro idling at cold start-up. The only thing I have found is the tubing melted off the intake and pcv valve. I'm wondering if thats my problem and any advice would be more than welcome.
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12-08-2010, 06:33 AM #2
Welcome to LS1.com
Post your tech questions up the linked section, you'll get a lot more help there!
http://www.ls1.com/forums/forumdisplay.php?f=6
2018 Tahoe - Silver - OEM
2008 Z06 - Velocity Yellow - BBE exhuast - Airaid CAI **sold**
2002 Z06 - Electron Blue Metallic - D1 - E85 - 701 rwhp 687 rwtq **sold**
2002 Z28: M6 NBM - cam and boltons - 396rwhp 357 rwtq **sold**
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12-08-2010, 06:36 AM #3
- Join Date
- Dec 2010
- Location
- townsend, mt
- Posts
- 18
white- 1998 Z-28 camaro
K. Thanx
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12-08-2010, 06:36 AM #4
A vacuum leak will generally cause a high idle issue. Other potential problems could be a dirty throttle body, a dirty or out of adjustment IAC valve on the side of the throttle body or a defective coolant temp sender. Other problems may also cause idle issues, but these are the most likely culprits. What are your symptoms?
And... Welcome!
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12-08-2010, 06:49 AM #5
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12-08-2010, 06:51 AM #6
- Join Date
- Dec 2010
- Location
- townsend, mt
- Posts
- 18
white- 1998 Z-28 camaro
Symptoms as follows: Starts fine but idle jumps to 3000 rpm right away, then I have to feather the throttle as it drops to stall, if i catch it then it jumps back up to anywhere from 2000 to 3000 rpm and then dropps to stall again. cant apply any throttle or it will choke itself or overrev. After about five minutes of feathering the throttle it finally smooths out and runs fine till the engine gets cold again. I didnt know a faulty coolant level sensor could cause idle problems, but since you mentioned it, my coolant light comes on and goes off intermittantly since i bought the car.
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12-08-2010, 08:32 AM #7
The coolant temp sensor (not level sensor) controls closed and open loop operation. If the sensor was reading high it could cause an issue upon cold start up. Does not sound like that is your problem though from what you described.
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12-08-2010, 10:33 AM #8
I'll check and clean the throttle body. Check the IAC make sure is not getting stuck.
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12-08-2010, 11:32 AM #9
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12-08-2010, 11:34 AM #10
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12-08-2010, 07:04 PM #11
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