19th Oct 2006, 19:11

I think it could be a rear end or drive shaft bearing on there way out. Don't underestimate a 18 year old, just a suggestion. I hope it works.

20th Oct 2006, 08:10

Thanks for the feedback. I'm also wondering if it could be related to the new tires, maybe the tire isn't balanced properly??? I may rotate the tires and see if I still hear the hum up front.

25th Oct 2006, 21:20

Bought a 1997 Chevy Blazer back in 2000. I read through all of the comments posted here back and I never laughed so hard in my life!...because I experienced many of these problems as well.

The body and interior look impeccable, but I have had many problems since then with the rest of the vehicle.

1) Replaced transmission w/labor $2700

2) Replaced fuel pump with labor $1200

3) Replaced front upper and lower ball joints more than once, and have recent;y heard a noise coming from that area and am debating replacing them again.

4) Rear wiper has not worked for over a year

5) Front windshield wipers don't work... just make a buzzing noise

6) Passenger mirror loosened and finally came off

7) O2 sensors

I can't afford to buy another vehicle and face these expensive repair costs again... will probably drive this for a while and buy overcompensate by buying a Toyota Camry next just to avoid the headaches.

Take care and happy driving!!

5th Jan 2007, 14:01

I have a 97 4.3L blazer, I am getting a Knock sensor error. The manual tells me that there is 2 Knock Sensors, but there is one missing. The problem showed up after the Computer was replaced. Is it possible that some versions of this car had only 1 Knock sensor and had a special version of the computer to handle it. any comments would be welcome.


29th Jan 2007, 22:18

Wow, so many problems listed in this blog. I am the original owner and the 97 blazer 2x4 LT is one of the best most reliable vehicles I owned. It now has 136000 miles on it. Of course one must expect to do the normal maintenance so I am not going to list that stuff. I have replaced a water pump, hoses, and alternator at about 80k miles-that is about it. My AC must have a small leek for I need to give it a couple of cans of gas before summer. My air bag light came on at about 100K miles for the airbag. Dealer noted about $600 to repair/replace the main module so I skipped that. I plan to drive it 2 or 3 more years. I have always passed California Smog by putting in new plugs and filter before the test. I will know if this works again in a few days.

3rd Feb 2007, 21:56

OK I have a 97 blazer and it is the worst car I have ever owned. I strongly Discourage any one from ever buying one of these. Please don't do it.

7th Feb 2007, 12:16

I've owned a '98 Chevy Blazer for a few months now. I bought it at 62,000miles, and it worked just fine, minus the electronic outside mirrors... Which I haven't really minded because they move manually if I need them too.(now at 80,000m)

The first thing to go was the compressor, had to have it entirely replaced.

And after that it's been fine...

Until now. I just got new tires, replaced the rear breaks and rotors, and had my break fluid changed.

Drove it home... No problems.

As soon as I leave to go to class later on that evening, I noticed that it was giving me a problem accelerating to 65mph... And that the RPM gauge is hesitating, and at that point my Service Engine Soon light has come on... Does anybody have any idea what it could be? I'm getting it checked out, but even so, after dropping a grand on it two days ago I would like an idea of what I'm looking at. Thanks!


12th Feb 2007, 05:00

First change the thermostat, then have the coolant flushed.

15th Feb 2007, 12:57

I just bought a 97 Chevy blazer 4x4 last week with 108,000 miles on it. Love the truck, everything works fine except the 4x4. my 2hi light is lit and when I press the 4hi or 4lo I hear a clicking sound behind the dash and the light will make a quick flash and nothing. The 2 I just stays lit. Any idea's. Also now that I have read all of these posts I am really worried. Not sure if I should show these post to my husband or he may have a heart attack.

16th Feb 2007, 08:24

I had the exact same issue with my 4WD buttons. I thought I would be spending a mint to have the 4WD overhauled. Luckily my mechanic was honest enough to let me in on a secret. Apparently there is a way to reset the 4WD by going through several motions. I don't know what they are, but he did it for me and it has been working great since. Best of all it was free! So don't get ripped-off, mention this to your mechanic.

Does anyone know how serious it is when the Service Engine Soon light comes on? I am probably being foolish, but I'm waiting to take it in for a check-up.

22nd Feb 2007, 02:41

I have a 1997 blazer 4wd. It shut down and needed to be towed.

The fuel pump is humming when I turn the key, but it won't fire.

Starting fluid when used gets it to fire, but that's it. Any comments appreciated.

22nd Feb 2007, 15:06

If you hear the electric fuel pump kick on, and it fires up when starting fluid is sprayed down the intake, it sounds like you either have a clogged fuel filter or gas line or a break in the fuel line. Is there any gas leaking under the vehicle? Have you ever changed the fuel filter? If it's been on there for 10 years, it could surely be the culprit. I suppose the fuel pump could simply be weak and is not pumping gas. You could unhook the gas line and turn the engine over to see if the pump has enough pressure to spray gas out the line. Also, does this have throttle body fuel injection or port fuel injection? I suppose you could have clogged injectors, but it would be odd that all of them would be clogged at the same time so badly to not let it start.

10th Mar 2007, 22:01

Wow, a lot of posts for my soon to be 1997 Blazer! I know of the GM diseases as I own several Astro Vans, but the Blazer can't really be that bad can it?

Anyway, I am taking delivery of it Tomorrow and I am paying next to nothing for it. I know it needs a Radiator and ball joints from the test drive. Oh well I will check in later about it. I don't need another POS. I guess what can I expect for $500? It's an LS with 200,000Km on the clock.

Wish me luck.

14th Mar 2007, 10:11

Does anyone know how severe it is when the service engine soon light comes on? Mine has been comming on and remaining on for a couple of weeks then it turns off again. It currently is off, which is awesome, but I don't know if that is good or bad.