2003 Chevrolet Trailblazer: engine overheating

Filed Jun 12, 2018 · Engine · 180,000 miles · MI

Overheating, replaced water pump thermostat clutch fan, radiator is good, fuel valve and clutch fan all new, still overheating when it's hot or city driving with stop and go. Mechanic reports he cannot find anything causing it. Found info on 2004 PCM clutch fan setting but, not 2003

Filed May 9, 2014 · Engine, Transmission · 147,000 miles · MS

Driving from out of town and all of the sudden rps ran high and trans would not shift. It would catch finally and then slip out had to drive it in 1st gear. Had it rebuilt lasted 1 yr and now back in shop! Having it rebuilt again. Very frustrated with this vehicle. I have had to replace just about everything on it at least once some things twice. Very poor made vehicle. Please look into the transmission problems. Mechanic states it is a known fact that the transmissions in trailblazers overheat which causes these issues. How can gm sleep at night knowing they are charging 36,000.00 for a piece of junk! I have to work hard for my money and don't appreciate the way gm turns a deaf ear to their poor workmanship and design. I feel I should be compensated for the frustration!

Filed Apr 4, 2014 · Electrical, Transmission · 174,539 miles · MI

Was driving on the highway to lansing when my check engine light came on and I lost all power and guage function.I began to hear a loud howling noise, pulled off at the exit went to the repair shop in portland, mi where my wheel hub exploded in their hand on the passenger side. The fan clutch has completely stopped working witch caused the vehicle to overheat, and loose all power and my 4 wheel drive locked right up and stopped working. This was extremely dangerous at a rate of 70 MPH because the vehicle slowed all the way down to 25 and had no power. I have had so many issues with this vehicle that I am now checking for recalls to have the vehicle serviced completely.

Filed Jan 12, 2010 · Electrical · 121,000 miles · FL

One or more of the gauges on the instrument panel intermittently malfunctions. The first indication was the gas gauge, which when the gas tank was filled, the needle pointed straight down, then would change to random areas on the gauge. I thought this was a result of the float in the gas tank sticking, until the needle pointed to different areas of the gauge at different times; no rhyme or reason, and was not consistent with a "sticking float". Then the tachometer would read 5,000 RPM when the vehicle was in park, and 7,000 RPM when going 35 MPH, and would point straight down at other times. Then the speedometer would read very random speeds, never consistent, and sometimes will read over 120 MPH. The temperature gauge reads different temperatures, and the needle sometimes points straight down. Though these malfunctions are random among the gauges, they are constant as a whole; on a daily basis. All of these malfunctions could be a safety concern. I never know how much gas I have, which could be dangerous if I ran out while on the highway traveling at 70 MPH, the speedometer is inaccurate, which could cause an accident in heavy traffic, whether traveling too fast or too slow, the temperature gauge is inaccurate, which could cause severe burns if the vehicle overheated, but failed to reflect that on the gauge, and similar safety concerns with the tachometer, which could also result in severe engine damage. I have also researched this complaint, and realized that there have been many of the same complaint submitted here, and to the manufacturer. I am very surprised that there was a recall for this problem on the 2002 model, but not on the 2003 model, since it is the same problem, and because so many complaints have been filed about it.

Filed May 16, 2008 · Lights · 40,000 miles · FL

Tl*the contact owns a 2003 chevrolet trailblazer. The contact stated that there was an overheating bulb in the tail light assembly. He received a recall notice in 2004 for this failure at 40,000 miles. The dealer inspected both lights and discovered that only the driver's side tail light was defective. The passenger side light was not affected at the time, but currently it is beginning to fail three years later. The vehicle was taken to the dealer and they stated that since it was previously tested and diagnosed, they would not repair the passenger side tail light. The recall number was unknown. The current mileage was 121,839 and failure mileage was 40,000.

Filed Mar 24, 2008 · Engine · 70,804 miles · NJ

For approx. 2 years there had been a constant ticking when my 2003 chevrolet trailblazer was running. Questions about the noise was dismissed by the service technicians as normal. Finally on 3/22/08 my fan clutch failed causing an overheat problem and a constant loud noise, along with a service engine light. Upon investigating this issue I found literally thousands of complaints on the internet regarding the chevrolet trailblazer and its premature fan clutch failures. To correct the failure I had to incur the $724.00 repair.

Filed Jan 5, 2004 · Electrical · 3,000 miles · TX

The instrument panel overheated and it burned the occupants. The dealer had been notified, but indicated there was no remedy for this problem.