2003 Chevrolet Blazer Consumer Discussions

Chevy Blazer Starting and stalling problems

Re: 2003 blazer ran fine shut it off will not restart HELP [fvaccaro]

Written by: debbie711 on Jan 09, 2008 03:31 PM

i have a 2001 chevy blazer to 4.3 vortec took it to three stations they said they cant find anything either my husband changed,fuelpump,plugs,wires,distrubtorcap,rotor,coil pack still does the same thing once it gets started it is fine you might want to try this turn key on for three seconds, shut key off then turn key on for two seconds turn key onoff then thrid ... Read More...

2003 blazer ran fine shut it off will not restart HELP

Written by: fvaccaro on Dec 17, 2007 00:26 PM

i have a chevy 2003 blazer 4.3 vortec 4x4, i recently drove it to work ran fine, after it sat for approx.four days it would not start, fuel pump kicks on, i replaced fuel filter and it does appear to be getting fuel. it just sits there and cranks over, i removed the ignition control module and had it tested, it was fine. i would appreciate any help anyone can give Read More...

2003 Chevy Blazer - Did I buy a lemon?

Re: 2003 Chevy Blazer - Did I buy a lemon? [sunshower19]

Written by: emtchick83 on Dec 16, 2007 03:35 AM

I noticed this post is a year old, but I felt the need to share. I have an 2003 blazer and loved it up till now. Its sucking my will to live, it appears to be one thing after another and the extended warranty is up in june. I had all ball joints replaced, gas tank censor replaced twice, and my check engine light has gone off twice after disengaging 4 wd, but according to the ... Read More...

2003 Blazer Multiple Issues Over Past Year

2003 Blazer Multiple Issues Over Past Year

Written by: emtchick83 on Dec 16, 2007 03:18 AM

I was a happy owner of a 2003 4 door chevy blazer, currently 73,500 miles. My vehicle is an automatic, and has power everything, push button 4 wheel drive, etc. I bought this vehicle used approximately 3 years ago with 16,000 miles on it from a dealership that used it as a "fleet vehice". Within the past year I've had the gas censor replaced multiple times, as it reads ... Read More...

Blazer Jimmy 4WD Questions

Re: 2003 Chevy Blazer recurring 4wd problem [johnnyd69]

Written by: grose67 on Jul 25, 2007 09:38 AM

I had the type of issue happen on my 95 Blazer. What I found was a kink in the vacum line. Once that was fixed, the 4 wheel drive worked great and has ever since. That was two years ago. Read More...

Chevrolet Blazer Trouble Codes

Re: 2003 Chevy Blazer [sgnobod2000]

Written by: repairdog on Jun 24, 2007 04:32 AM

No, need a code reader and Advance and AutoZone read for free as well as many other local stores (in hopes of selling you parts). Read it out and maybe just a simple loose cap so write the code down and have them erase it and see if it returns. Read More...

2003 Chevy Blazer

Written by: sgnobod2000 on Jun 23, 2007 07:10 PM

I just recently got my service engine soon light coming on. I thought originally it was bad gas because it was right after I got gas, within 15 minutes. After my store stop I added the same amount of gas from a different station. Light stays on. runs ok. Is there a manual way to get the codes on this vehicle or do I need a reader. I know my other vehicles you had to do a succession ... Read More...

Blazer Jimmy 4WD Questions

Re: 2003 Chevy Blazer - SAME 4wd problems too! [watertank]

Written by: repairdog on Feb 03, 2007 03:19 AM

I looked back and never saw if this was a 3 or 4 button dash switch - 4 is Autotrac case. If it went into 4Lo then the front axle coupler worked. 3 button np233 case the encoder steps once to 4HI and sends vac to front actuator via a 3 port vac switch on the case and engages the front drive shaft. Steps again for 4Lo. Autotrac np 236 case is different and front driveshaft always ... Read More...

Re: 2003 Chevy Blazer - SAME 4wd problems too! [repairdog]

Written by: watertank on Feb 02, 2007 02:27 PM

They just called and said with the new encoder motor, they still can't get it to go into 4hi (just 4lo). I gave them some info from here, wiring harness and vacuum line and they said that's where there going next. They also said the battery failed on the diagnostics........I'm on my way over to get a loaner. Thanks for the forum and the info. Will keep you posted. Read More...

Re: 2003 Chevy Blazer - SAME 4wd problems too! [watertank]

Written by: repairdog on Feb 02, 2007 02:18 PM

Yep, they were winging it. How much for that Delco battery - ask them to put the original back if that wasn't the problem or just pay it (only battery cost as that was NOT the problem you brought it in for and did not fix it - but you're a good guy so ....) As for a 2003 encoder motor if you are in a wet salt use state thats possible and that was free so ... sounds good if it now ... Read More...