2004 Chevrolet Trailblazer EXT engine problems

Filed Nov 3, 2017 · Engine · 143,000 miles · CA

Cracked exhaust manifold

Filed Jun 24, 2017 · Engine · 162,525 miles · GA

Vehicle's reduced engine power light comes on, and vehicle loses power in dangerous places. Lost of problems consist of several parts having to do with acceleration. This problem happened suddenly, andnis a danger to himan safety because of it happening several times including o n the highway.

Filed Aug 26, 2014 · Engine, Fuel system · 111,000 miles · FL

Starting about a few weeks ago my 2004 chevy trailblazer ext has reeked of unspent gasoline, and this smell consumes the entire interior and exterior of the vehicle. The vehicle also has small leak below reservoir which appears to be leaking unspent fuel. Chevy offered a "special coverage" to correct this issue (corrosion on top of fuel tank reservoir), however it only covers vehicles under 10 years of age and under 120k miles. My vehicle is under that mileage, however this repair will not be covered due to age of vehicle (mine was assembled in march). This issue is a major safety concern, as any small spark could cause this vehicle to ignite. I cannot continue to drive my vehicle, and feel this needs to be rectified before it causes catastrophic loss (either building or personal).

Filed Dec 31, 2013 · Engine · 119,258 miles · SC · fire

While driving on the highway there was a boom under the hood. Two minutes later the car started decreasing power and I had to pull over. Before I could get out to lift the hood, fire was shooting from under neath.

Filed May 2, 2012 · Engine, Wheels · NJ

I was wondering how come there hasn't been a recall for the chevy trailblazer ext for the throttle body. I see that they have recalls on other chevy cars with the same issue. This is a very dangerous issue as when this goes you have a reduce engine light that comes on. Which I didn't know what that meant until my car wasn't going any more than 20 MPH. This is very dangerous to be on the road like I was and can't speed up or better yet trying to turn when you don't have the power to do so. Also, I see that there were also alot of issues with the speedometer. Which also I had that problem has to pay too much money to get this fixed. As how they would say their are manufacture parts which definitely hurts your pockets. If they know that they have these issues they really need to rectify because both of these issues cause some serious problems on the road. I know they are wear and tear on cars / trucks but if you have too many people having the same problems I think they should do something to resolve these issues.

Filed Mar 7, 2012 · Electrical, Engine · 146,000 miles · CT

Car felt "stuck" in gear, wouldn't accelerate, low on transmission fluid. Added more fluid, replaced speed sensor, camshaft & crankshaft sensors. Still having issues with rpms going high, car slamming from one gear into another. Also cannot run heat while driving, fan draws power & causes engine to stall out. Car also burning through gas very quickly.

Filed Aug 13, 2011 · Electrical, Engine · 75,000 miles · FL · fire

This vehicle had been parked in the driveway from 7:45 pm, (august 10, 2011). I was awakened at approx. 3:55 am on 8-10-2011 by hearing a muffled boom. At 4:00 am (aug. 11, 2011) I heard a loud bang type noise. I immediately got up and went to investigate. I went outside and found my 2004 trailblazer (ext) on fire from the engine bay and just beginning to flame inside the vehicle's passenger compartment at the dashboard..it only took minutes before the vehicle was fully involved. The fire began in the engine bay. The fire marshall report is still pending and I was informed it would take 6 to 8 weeks before it was available. Approx. Two to three months prior, I took the vehicle to a repair garage to fix the low beam headlights (they had failed and changing the bulbs was no help. It turned out that it was a failed relay, which was replaced. It was a couple of weeks later that I had to replace the vehicle's battery as it had gone dead and would not take a charge. The old battery was about three years old. There were no other battery/headlight issues after these repairs. No tools or other parts were dropped into the engine bay, or left in the bay. I was an aircraft mechanic and old habits of keeping rack of my tools never die and all tools used were accounted for. The roads were dry where it was driven there was no rain at the house all night. I reported this to chevrolet that day. As a result of the fire, the eaves of the house over the garage caught fire, my wife, son and myself had minor carbon monoxide poisoning, my work truck was damaged by the heat of the fire, so I cannot work (self employed) until I get a replacement (no rental company will let me use a truck to work from as I need to carry large quantities of chlorine in my pressure cleaning business. There have been no other problems of this kind before with this vehicle.

Filed Jul 25, 2011 · Engine · 120,000 miles · NC

The ext. Manifold on my 2004 trl blazer has a leak in the maifold body. The vehicle has approx. 120000 miles on it. This should be a recall item for manufacturing defect, but gm has not as of yet, issued a recall. It is a costly repair, as well as a safety concern, given that the exhaust fumes can enter the passenger compartment of the vehicle. I have owned many gm vehicles overtime, and never seen this before.

Filed Mar 30, 2011 · Engine, Fuel system · 98,000 miles · TX

Not sure what to file this under, so I put it under unknown and other. About 4 months ago my service engine soon light came on. It stayed on for a few days then went off, a few days later it was back on, then a few days later went off, then it came on for a longer period of time and do the same thing, eventually it stayed on. Took it to the chevy dealership where I bought it and they said the gas tank had a crack in it and needed to be replaced. Said it was probably from the gas nozzle hitting the tank when filling it up. Don't see how that is possible, when it is only me or my husband filling it up & how hard would you have to hit it for it to crack? Had it replaced the next month. Now the service engine soon light is doing the same thing. Haven't taken it back in yet.

Filed Sep 9, 2010 · Electrical, Engine · 120,000 miles · MA

Check engine light - for over one year now, and 4 various mechanics, no once can figure out why my check engine light comes on. I have replaced two air sensors (actually 3 - one was bad)... I have spent close to $1,000 to get this fixed - but the dam light continues to go on (intermittently) sometimes it's on for a month - off a day - on two weeks - there is no pattern. The last time the light came on, my car began stalling in traffic and stop signs. Last mechanic spent 5 hours tracing all the codes back - nothing. Next day had another mechanic check codes and the engine running cool as well as a few others showed up. If no one can figure this out - where is the recourse. I feel like I am being scammed over and over. I stalled on rt. 24 slowing down in traffic - and was almost hit by a box truck because I just sat there. Who can help direct me to a repair which will ultimately end this issue? Now, the lights off this week (watch, now that I say this it will come back on). The only thing I notice is that many times the light turned off after I filled the tank. So, is there anyone out there who knows what's wrong (referring to mechanics who take us for a ride $$$)? I challenge anyone out there to figure this out.