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Chevrolet TrailBlazer Engine and Performance Problems

36 messages,  Last post on Nov 20, 2009 at 9:28 AM

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What is this discussion about? Chevrolet TrailBlazer, Chevrolet TrailBlazer EXT, SUV

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#32 of 36 2003 trailblazer ext. Lt by hodgemelody Nov 08, 2009 (11:20 pm)
Here are the problems I have. Ticking noise, second row seat/passenger side window will not work, i was told by onstar that I am having a control sensor problem(i believe that is what she called it), when you take off it sounds like a jet taking off(is this natural?), . Replies to this message: ticadoo (Nov 09, 2009 6:33 am) burdawg (Nov 09, 2009 7:03 am)
#33 of 36 Re: 2003 trailblazer ext. Lt [hodgemelody] by ticadoo Nov 09, 2009 (6:33 am)
Replying to: hodgemelody (Nov 08, 2009 11:20 pm) I too had the fan clutch replaced...the "jet noise" and ticking stopped for a while..and is back again. This truck is possessed and nothing but junk. I've had so many problems with it and it just turned 80,000 miles. The driver's side turn signal/brake will not work when it rains; if I am using the CD player and put down the sun visor..the CD player stopps working; even with the wipers off...the come on by themselves...the A/C and heat works when/where it wants; the service engine light will not go off.....and the gas mileage is HORRIBLE. I can't afford another truck now...so I guess I'm stuck...
#34 of 36 Re: 2003 trailblazer ext. Lt [hodgemelody] by burdawg Nov 09, 2009 (7:03 am)
Replying to: hodgemelody (Nov 08, 2009 11:20 pm) Ticking noise - If it's the same problem we had a long time ago it was eliminated when the PCM was updated with new firmware, I believe it had something to do with altering the VVT until the engine was warmed up. We also had a loud "ratchet" type noise coming from under the dash, it was the mode door actuator and was repaired under warranty. Window not working - shouldn't be that hard to diagnose/repair. Loud noise when "taking off" - could be fan clutch, if it's not working right the fan will be on full force and will be noisy. It's another known potential problem area.
#35 of 36 03 trtansmission by jonal09 Nov 19, 2009 (5:37 pm)
my Trailblazer EXT tramssion won't shift into 3rd gear. any suggestion besides the expensive one?
#36 of 36 key switch and gear shifter by jasonp2 Nov 20, 2009 (9:28 am)
my key wont turn off and key is stuck and at the same time my gear shifter wont lock and moves freely!!!!!!!!!!!! are these related are just a strike of luck????? and what would cause all of this????????

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