99 blazer 4.3 4wd my blazer turns over but wont start i replaced fuel pump and in 2-3 weeks it went had it replaced and now doing same thing only not all time it will run for about a week fine then all of a sudden not work took to mechanics and it worked fine every thing running fine no codes fuel pressure fine brought it home ran for a few hours and went to start it and turns over but no start any suggestions

99 blazer 4.3 4wd my blazer turns over but wont start i replaced fuel pump and in 2-3 weeks it went had it replaced and now doing same thing only not all time it will run for about a week fine then all of a sudden not work took to mechanics and it worked fine every thing running fine no codes fuel pressure fine brought it home ran for a few hours and went to start it and turns over but no start any suggestions

What brand of fuel pump was used?
Fuel pressure 60/66 lbs?
When it no start check fuel pressure and for good hot blue spark to all plugs.
Any codes or check engine/security lights?
Post back info.

not sure what brand of fuel pump 1st one lasted 3 weeks this one put in jan 19 had it towed to mechanics and the next morning started left it there a week no problems no codes fuel pressure fine every thing else running fine they diag it nothing brought it home and had it for maybe 6 hours and sat for 2 hours went to start turns over no start left it over night still no start poured tbs. gas and started for a few seconds dont here pump kicking in

not sure what brand of fuel pump 1st one lasted 3 weeks this one put in jan 19 had it towed to mechanics and the next morning started left it there a week no problems no codes fuel pressure fine every thing else running fine they diag it nothing brought it home and had it for maybe 6 hours and sat for 2 hours went to start turns over no start left it over night still no start poured tbs. gas and started for a few seconds dont here pump kicking in

Check for lose of fuel pressure and spark.
Post back results.

mine did same thing. could be a number of things. mine was a bad coil.

thanks for all your help it was another bad fuel pump put in acdelco this time hope it last longer then 2 months lol

thanks for all your help it was another bad fuel pump put in acdelco this time hope it last longer then 2 months lol

You are welcome and thanks for posting back the fix.

Yes Ac-Delco/Delphi fuel pumps are the best.

If you had a Airtex fuel pump in it That was your problem for sure.:lol2: