Questions & Answers for: Chevrolet Blazer 12 volt relay

...12 volt and ground to the pump by using a jumper or any wire and listen for pump sound. if not replace the pump. if there is sound coming from the pump, it is ok. check the fuel pressure regulator ...

relay but the motor still will not work when re-connected. I have approx. 12 volts coming from the connector until it is connected to the motor (under load), immediately the voltage drops to approx. 2

...volt meter? The starter is malfunctioning at this time. it could also be a ignition issue as well. here is a quick starter test procedure that will help you troubleshoot a bit. Step 1 Check for 12 ...

...relay is good...what next need to check if you have 12 volts and a ground at fuel pump harrness if you do you have a bad fuel pump some times even though thy the fuel pump that is is bad you can git ...

Relay has a shorted contact...If +12 volts is present...The Mode Switch (A/C, Bilevel, Vent ...etc) is defective...If you had left the mode switch on (A/C for instance) when you discovered the fault..

relay. Thanks Spray gas into your carborator. Try to start it. If it starts and dies instantly, it is probably the fuel pump. You can also check the voltage going out of the pump. It should be near 12

...turn over check voltage at the starter you should have 12 volts and if you do then your starter is bad.If you don't have 12 volts at the starter than check your ignition switch and starter

12 volts at the wire there.If you do have power there, then you'll have to remove tank and pull your pump out to test it. If you don't have power there when key is on or cranked, then you have

new fuel pump and relay no noise at pump when switch is on Check for 12 volts at the pump and if you have voltage then the pump is faulty.If you don't check for bad ground.

...system and replace it to see if it works. it sounds like a lazy relay. also hook it up to a scan tool and make sure your system ahs 12 to 12.6 volts before starting and 14 plus volts at an