My 2003 Chevrolet Trailblazer has not had any problems to mention, other than this ticking sound coming from the motor. All I can figure out is that it stops when I turn off the air conditioner. Don't know what it is, but it is annoying!!! But, I can't complain. Still driving it today, with 200,000 miles. Only minor repairs, oil changes, etc. I would like to have the radio/dash/steering wheel lights replaced, but understand it is costly. They burned out shortly after I got the vehicle. And, I had to replace the thermostat once. I do not like the seats. Not comfortable. AND, the air conditioner doesn't cool while sitting or parked at a red light. Will run you out while running, but not parked. I can't complaint. Has been a GREAT car considering.

Ticking noise almost sounds like engine burning up. I maintain my Trailblazer very well. Have already replaced the fan clutch, and am needing to do it again vehicle going in shop on Monday, for replacement, Had to get oil change on Saturday and guess what, no oil in car what the hell? No smoking and no leaks according to mechanic shop, soooo where is it going? Shop says just normal to burn oil with this many miles!!!!! Could I be burning oil due to fan clutch issue and it putting a strain on the engine when it reeves up when starting it and then when i drive I tend to give it more gas to get it to move to the next gear because the fan clutch wont let it go?

ok the ticking isn't due to the clutch fan being broke. the clutch fan is a separate problem that sucks. i've replaced it twice in a year and a half. it blows when you get on the truck a little especially if you go over 80mph and get up to 80 fast a couple of times. you can get the part at your local parts dealer from $175-280 and the local mechanic can fix it for whatever their hourly rate is cuz it doesn't take long to fix. the ticking is due to poor lifters. its a lifter tap and they all have after certain points. mine started at 43,000 miles. i was told switching to synthetic oil helps alot. but the engines are just poorly made. on one year of the trailblazer the engine is a recall that should say something right there. also the fan is loud. its because the fan is to small there is to much power pushing it and causes them to sound loud and blow too. the high idle is usually a sign of needing a clutch fan. all in all the trailblazer is a good truck that tows nice and gets decent gas mileage, it has some problems like most other cars. mostly the clutch fan and the ticking noise.

I noticed my ticking noise when leaving school one day. It was a small tick tick tick tick noise, kind-of like a metronome sound, but here recently it's gotten louder. Sometimes it'll skip a tick or two and keep ticking. Sometimes I can revv my motor a bit and it'll turn off, but when I let off the gas, it'll start right back up. I haven't had my problem fixed yet, don't have the money to, really, but it's very annoying when you're outside the car. I can't believe I've found this site with so many others with the same damn problem.

I've been hearing a slight ticking noise in my trailblazer for the past few weeks. Suddenly it started sounding much louder (almost like sticking something in the spoke of a bicycle) so I decided to take it in to have it looked at. The car's driving fine but knowing my luck (I only have two payments left to have the entire car paid off) I figured I better do whatever I can maintenance wise to make sure it runs for a while. I took the car to Firestone and explained the problem as a loud ticking or vibration which sounds like it might be coming from the engine. They called me back not twenty minutes later and tod me they think I might have a rod knocking and suggested having my engine replaced/overhauled/rebuilt. They told me they don't normally handle such a large problem and when I asked them if they could recommend me someone they said they'd call around and would get back to me. They then called back and said it would cost $4325 for the engine assembly, $1400 in labor to remove and replace the longblock and $344 for a PS527 install kit. The total with tax was going to be $6647. Being a girl and having no way to know if they're screwing me...I called an engine repair shop out of the phone book who told me they could replace the engine for $2300 dollars. I'm slightly confused about the significant price difference and now after reading everyone's comments on the ticking sound coming from their fan clutch I'm wondering if I even really need a new engine :( Grrrr...

I have had my Trailblazer since it was new and have had almost zero problems with it. The only things have been little annoyances. This ticking noise began a few months ago and I have not been able to figure out exactly where it is coming from. It echoes too much under the hood to pinpoint it. I suppose the most common diagnosis has been the fan clutch. I am trying to wait it out and find out if there is another answer since replacing that hasn't worked for some people. I am disappointed that Chevrolet has not stepped up to the plate with a solution. This ticking noise drives me and my wife crazy and everybody asks us about it.

I just recently bought a 2003 Trailblazer LT. It had 61,000 miles on it when I drove it off the lot! It now has only 72,000 miles and as of October 12th, it started making the (TICKING) noise! IT is that clutch fan and it does cost about $750.00 to replace! That is more than the taxes I payed on it!!!! If I had known this was a common problem with Trailblazers after 60,000 miles I probably would have just settled for a Ford, or worse, a Dodge!!! Chevrolet, I have become real disappointed in you! What an embarrassment!!!