2002 chevy blazer wont start when temperature falls below 20, when I turn the key on I can hear the selenoid cliking but the starter wont turn over head lights dont dim sometimes after trying a few times it starts fine. replaced the battery and the starter still the same problem.

SOURCE: 2001 chevy blazer not starting

I had this same problem with my 1997 Blazer, which required a fuel pump replacement as Nitrobike said. The sign to look for is when you get in the Blazer, turn your key forward to the accessory position, but not the start position. You should hear the fuel pump charging. It sounds like a hissing or whirring noise for about 2-3 seconds while it pumps fuel into the lines to prime the engine.

Fuel pump replacement isn't cheap, about $700-$1000.

SOURCE: 2002 pontiac grand Am

Replce the Starter Relay in the Fuse Box under the Hood.

SOURCE: engine falls below 500rpm lights dim and engine stalls out

I had a bad air conditioner compressor that caused this same problem. It had almost completley seized and gave the car some real trouble starting. The burning smell I had was caused from the belt rubbing around the seized pully.

mike loshbough

• 1011 Answers
• Posted on Feb 22, 2009

SOURCE: 1992 Chevy Blazer Tahoe Starter Removal 4.3l 4WD Vortec

you have to remove the cover over the torque converter 4 bolts holds this on .you may be able to just move it out of the way. and yes it does sound like a starter problem.i hope this helps

SOURCE: problem starting 2001 chevy blazer

buy a jump box an when it does it put jump box on it will start every time i have same problem but iam thinking its loose ground or power wire