The 1985 Chevrolet S 10 blazer fuel pressure regulator can be found on the top of the engine. The fuel pressure regulator will be near the fuel injector pump.
Need to know what year and engine.
It is attached to the throttle body.
It is located in the throttle body.
Need to know what year the vehicle is.
There is no adjustment, it is preset for 41 to 47 psi.
Answeron the injector rail...follow the fuel hoses from the tank to the enginedThe Regulator it under the upper intake on the injector
It is on the fuel rail on the return side. The rail meaning where the fuel injectors attach.
We need to know the year and engine size to answer that one.
The fuel pressure regulator woiuld be located under the upper intake manifold on a 4.3L. It is attached to the bank of injector poppets aka "the spider".
A plugged up fuel filter, a faulty fuel pressure regulator or a faulty fuel pump.
The voltage regulator is built into the alternator.