Having problems with your 1999 Chevrolet Blazer ?

How to check for a bad fuel pump in a "99" blazer, 4.3 motor? I sprayed starting fluid in air fillter and it would fire but not run.

Posted / edited by AnonymousUser on : 12-11-2018

Answers :

If gas and starting fluid does not create a spark I believe the coils or ignition module is your problem
To check the fuel pump turn the key to the on position without trying to start the engine. Once turned to to on position the fuel pump will run for 5 secounds to prime fuel pressure to the injectors. If heard running you have a problem above as mentioned
Repair Help & Product Troubleshooting for 1999 Chevrolet Blazer

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