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Re: MY BUICK 06 BUICK RENDEVOUS DOES NOT HAVE POWERE AT...
GM Fuel Pump Relay Testing Watch this video ,all GM vehicles work the same way . Turn the key on ,the PCM will energize the fuel pump relay turning the fuel pump on for two seconds to prime the fuel system.
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There is no reset switch, you likely have a bad fuel pump, try this use a 2x4 or soft hammer to rap on the fuel tank as someone turns the switch on and off when you hear the pump hum the car will start and run but change the pump immediately. Almost every other problem that occurs in the fuel system will cause the check engine light to come on and it will set a readable code. I hope this helps. Take care.
Is there B+ voltage to the fuel injectors ? Blown fuse's ? Security light lit on the instrument cluster ? If the vehicle will run with you sparying starter fluid in the intake , low or no fuel pressure or injectors not spraying fuel into the engine. Hooking up a fuel pressure test gauge an checking pressure an flow would be the thing to do , not guessing ,because you hear the fuel pump turn on . That does not mean it's making fuel pressure . Your best bet , take it to a qualified repair shop .
Anti-theft problem ? Security light lit on the instrument cluster ? Have check for DTC'S - diagnostic trouble codes . The PCM - engine computer disables the fuel injectors .
How long since a tune-up? Any applicable trouble codes? Is fuel your only problem? Engine cranking, you have spark at the plugs and fuel injector pulse? Your security system isn't an issue?
If the only problem is fuel, use a gage and check proper fuel pressure.
Install the new thermostat (make sure it is the right temp). This will allow for your coolant to stay long enough in the radiator to cool down.
If that does not fix it, check radiator cap, belt that turns the water pump and the water pump itself along with its pulley.
There is also the possibility that the coolant temperature sensor is giving off false readings, that the coolant system is clogged or your engine fan is not operating when it should be.
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