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Chevrolet TrailBlazer Engine and Performance Problems

72 messages,  Last post on Feb 26, 2013 at 7:58 PM

You are in the Chevrolet TrailBlazer Forum.

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

Messages Page 7 of 8

#61 of 72 Re: Reduced Engine Power light [shopgirl0628] by kasihia

Mar 13, 2012 (4:55 pm)

Replying to: shopgirl0628 (Jun 23, 2010 10:26 am)
I had the same problem with my 2006 Chevrolet Trailblazer. The loss of engine power light kept coming on and eventually got bad enough that it stalled out and even almost got me into a few accidents but cutting power without much warning. After $800 in parts (thankfully my husband could do all of the labor), we found a fix for the problem. Try your map sensor and mass airflow sensor. We tried the alternator, serpentine belt, battery, cleaning the throttle body, a new accelerator pedal, etc. etc.

#62 of 72 2005 Trailblazer Blown Engine by glocks

Mar 15, 2012 (1:53 pm)

I have a 2005 Chevy Trailblazer that, I guess, has a blown engine. THe dealership told me it was a lack of maintenance, even though I get my oil changed on a regular basis. they said a fire burned a hole in the piston in cylinder #4. Anyone ever have this kind of experience with a 5.3l, V8 Aluminum Cast engine block?

#63 of 72 Worst Machine I have ever owned by hotcoal

Apr 09, 2012 (12:38 pm)

Where do I start. I purchased my 2004 Trailblazer in 2008 as a Certified Pre Owned GM vehicle. When I got my first oil change after purchasing the vehicle, the mechanic showed me that the dipstick for the transmission was completely gone, it has rusted off. I returned the vehicle to the dealership showed them the dipstick and asked them how something as simple as this was not discovered during the supposed GM Certification process. I asked to be able to trade the vehicle for another one, demanded that I didn't want it and I was only offered trade in value which was substantially less than I paid for it. If only I knew what I know now I would have gladly taken the trade in value. Last year (my final year of payments) I was having an error code for engine misfire. After paying for diagnostics I was informed I had a bad cylinder (not holding compression) and had two choices, 1. Repair the valves and cylinders on existing engine $3,500 or 2. Put in a another used engine with 30,000 less miles than mine that came with a parts and labor warranty $1,800.00. I opted for option two. Six months later, I have misfires in two cylinders that are random. The mechanic says this is likely the problem I had with my previous engine just not as far along yet, good thing I got the warranty. Today the transmission went out, so I have an engine that needs to be repaired and I need a new transmission. On top of that the air conditioner will not blow out the front vents, says I need a new actuator. The instrument cluster hasn't worked for two years. The headlights, brake lights, tail lights etc. need replacing every few months if not weeks. CD player quit working the first few months I had it. Check engine light never goes off. I drive it back and forth to work (50 miles roundtrip) everyday and that's it. I finally paid it off in February and now I need to spend thousands more on repairs. Many of these problems I have had are problems that many Trailblazer / Envoy owners have. GM does not issue recalls or will not correct these issues. GM will not stand behind their product I will never buy another GM vehicle. Sorry for the length, my rant is over.

#65 of 72 Throttle body repair gone bad to worse by jay1310

Apr 12, 2012 (2:43 pm)

2003 Chevy Trailblazer, 6 cylinder repair went from bad to worse:
I had to change out what apparently was a bad battery. Upon doing so, my car's system engine lights and Reduced Engine Power lights came on. I had it tested, and
was recommended to change the faulty Throttle Body. I bought a used one, put it on and now its still behaving the same, only now also I cannot shift out of park. Are these two related? I think I have a bad used throttle body, but now I can't even drive at 14 miles an hour to the shop. recommendations? Car just hit 112,000 and I did try to reset the computer several times.

#66 of 72 Re: 2005 Trailblazer Blown Engine [glocks] by katnap68

Apr 19, 2012 (2:22 pm)

Replying to: glocks (Mar 15, 2012 1:53 pm)
I have a 2005 Chevy Trailblazer that I had bought brand new, and now 7 years later with 190+ highway miles, am looking at replacing the engine, almost have all parts replaced why not the engine right? supposedly cylinder 6 had no compression, got a second opinion, and was told pretty much the same thing, took it to dealer thinking they could just replace the cylinder only to be told that it can not be fixed (mind you paid off, no warranty) valves are clogged with oil residue, all sorts of other issues inside there on top of that, so was told best bet to replace engine, contacted GM to report issue as I can not phatom this from a Chevy, I have had Chevys in the past well over the 250+ mile mark, and never had to replace the engine, very disappointing and I am sad, upset and all the emotions that could go along with this type of issue.

#67 of 72 Re: 2005 Trailblazer Blown Engine [katnap68] by burdawg

Apr 20, 2012 (6:42 am)

Replying to: katnap68 (Apr 19, 2012 2:22 pm)
I assume you mean 190K miles. With that many miles I'm not surprised GM didn't respond to your satisfaction. Anyway, I don't know why anyone would want to with that many miles, but your best bet is probably to get a good used engine and have it put in.
Did anyone actually find out what was wrong with #6 cylinder? Bad valve? Hole in the top of the piston? Cracked block? Anything?

#68 of 72 Re: Reduced Engine Power light [kasihia] by tblazing

Jul 23, 2012 (5:14 pm)

Replying to: kasihia (Mar 13, 2012 4:55 pm)
Did the map sensor and mass airflow sensor fix the problem or is it still occuring?
When we use the electric windows we get a reduction in engine power.
Thanks Rich

#69 of 72 Re: 2002 Trailblazer - New Engine at 85,000 miles - ouch! [clickytb] by btr717

Aug 28, 2012 (8:52 pm)

Replying to: clickytb (May 16, 2009 10:30 pm)
I have had the same clicking noise (I do believe) for years. It is just the fan clutch trying to engage/disengage, so my mechanic says. It has not affected my engine power, nor has given me any trouble except the aggravating click.

#70 of 72 Dies Randomly by help_me3

Jan 13, 2013 (6:17 pm)

I have a 2003 Chevy TB with 100,000 miles. Over the last couple of days my car will randomly die while I am driving. There is no check engine light or any clue as to what could be causing this. I have only owned the car for 3 yrs. and already replaced spark plugs, alternator, cat converter, starter, driver's side window (that was a weird one), and put a new (used) engine, and most recently fuel filter (hoping that would solve the problem)!! I have no code to check and nobody really knows what it could be. Any ideas??

Messages Page 7 of 8

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