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09-01-2004, 02:16 PM
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Join Date: Sep 2003
Location: NY
Posts: 249
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My check engine light went on yesterday after I got on it to pass someone, I'll take it to the dealer,its got 32k on it any ideas what it might be?  |
09-01-2004, 02:16 PM
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Join Date: Sep 2003
Location: NY
Posts: 249
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My check engine light went on yesterday after I got on it to pass someone, I'll take it to the dealer,its got 32k on it any ideas what it might be? |
09-01-2004, 02:16 PM
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Join Date: Sep 2003
Location: NY
Posts: 249
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My check engine light went on yesterday after I got on it to pass someone, I'll take it to the dealer,its got 32k on it any ideas what it might be? |
09-01-2004, 03:25 PM
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Hummer Expert
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Join Date: Nov 2002
Location: North Texas
Posts: 523
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I have 20,000 miles. I have tromped on the accelerator a couple of times lately, but no "check engine" light came on. Keep us posted.
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Jim
2003 H2 Metallic Red (now gone)
2008 H3 Graphite Lux
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09-01-2004, 04:37 PM
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Hummer Expert
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Join Date: Oct 2003
Location: Back in Orbit watching you...
Posts: 506
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I was going through the Sepulveda pass at abouit 80 MPH, stepped on it to keep up my speed, it down shifted 2 geers, then the light came on. dreove another 50 miles, shut it off for 30 min, light still on, let it sit for a couple of days it then wnet away. I have no idea why, but it hasn't come backon.
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03 H2 Black Lux, 02 Fat Boy, 06 R1, 08 Ultra Classic, 39' Erickson and one scurvy dog
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09-01-2004, 05:44 PM
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Hummer Professional
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Join Date: Feb 2003
Location: Palm Desert, CA
Posts: 470
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I did that the other day and all of my dash gauges went off but the check engine light didn't come on....I stopped and turned the ignition back on and everything was back to normal..strange.
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2003 H2 Hummer, Yellow,Polished Whipple Supercharged, Dynatech long tube headers, catback,18\" Ambush w/Toyo MT\'s,lots of goodies!
Y2K Corvette Millennium Yellow Convert/Blk/Blk, B&B headers, B&B Tri-Flo\'s, H-Tech MAG,GMS MAF, RM Racing TwinFlow.
1994 Chev Suburban Blown
1970 Trans Am balanced, blueprinted, ceramic headers, etc.
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09-01-2004, 06:06 PM
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Hummer Veteran
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Join Date: Nov 2003
Posts: 25
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1BADH2,
It could be the type of GAS you’re using… or your gas cap may be loose… (usually #1 reason for check engine light)
Did you fill up Costco Gas? The check engine light on my past vehicle would always turn on after filling up at Costco. ****ty Gas…
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09-01-2004, 06:27 PM
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Join Date: Sep 2003
Location: NY
Posts: 249
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I checked the gas cap and it was loose,(I feel like a moron  ) the light is still on but maybe it will go off soon. I'll keep you posted. |
09-01-2004, 07:15 PM
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Join Date: Jul 2004
Posts: 2
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you probably need to reset the computer...just unplug the positive battery terminal for about 10 minutes...then plug it back in..problem solved
Brian
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09-01-2004, 07:28 PM
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Hummer Guru
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Join Date: Nov 2002
Location: Cognito
Posts: 2,155
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<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by 1BADH2:
...any ideas what it might be? <HR></BLOCKQUOTE>
It means you need to Check the Engine.
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09-01-2004, 07:34 PM
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Hummer Veteran
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Join Date: Nov 2003
Posts: 25
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Since the gas cap was loose, it will take a few miles for the computer to reset itself... Do not worry, it will do it on its own... No need to rush to the dealer on this one...
PS. Yes, it has happened to me too!
Discofever!
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09-01-2004, 07:43 PM
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Hummer Expert
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Join Date: Nov 2002
Location: Longwood, Florida USA
Posts: 547
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Discofever is right on the money. You can replace the cap with engine on or off but restart the engine and it will go through the diognostics check in the first second.
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09-01-2004, 08:31 PM
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Hummer Veteran
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Join Date: Aug 2004
Location: west chester pa.
Posts: 97
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the light will reset after 3 drive cycles.a drive cycle consists of driving the vehicle a ninimum distance of 15 miles then letting it cool down completely. so in 3 days the pcm will have ran all of the obd2 tests and when it sees it pass it will turn off the mil lamp.pcm=powertrain control module.mil=malfunction indicator lamp.
iv'e been a gm tech for 20 years.
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09-01-2004, 09:32 PM
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Hummer Authority
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Join Date: Mar 2003
Location: P-Town and Now Vegas again.
Posts: 1,369
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I am driving my old car with the check engine light on. It been like that for the last 70k and now I am at 260k.
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09-02-2004, 01:32 PM
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Hummer Veteran
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Join Date: Nov 2003
Posts: 25
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Albie, that only means that the gas cap is not the problem... We that many miles, I have a suspicion that your check engine issue will be the oxygen sensors on your exhaust between the exhaust manifold prior to the catalyst converter.
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09-02-2004, 06:04 PM
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Hummer Authority
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Join Date: Mar 2003
Location: P-Town and Now Vegas again.
Posts: 1,369
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the problem is that I have only 18 psi in one the of the Cylinders.
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