Question about 1990 Chevrolet S-10 Blazer

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1990 chevy blazer 4.3 no fuel going to throttle body. Cannot hear very well so do not know if anything is kicking on. was wondering where the regulator and the fuse is that runs the fuel pump.

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  • GMtechFD May 11, 2010

    There is a Fuel Pump Relay under the hood with the rest of the relays, and I can't remember offhand which fuse is linked to the fuel pump. The Fuel pumps on these are known to fail relatively frequently though. That would be my first guess at it, the regulator Should be right off the t-body to the...passenger side I think. I havn't seen one of these with a t-body in the last year and even then I think maybe 1 before that so not terribly familiar with them.


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There is a fuel pressure point on the fuel rail u can hook up a fuel pressure tool to check the pressure and the fuse is in the glove box the fuel pressure regulator is under the intake

Posted on Aug 16, 2009

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