...voltage to control the fuel pump by energizing the relay . GM Fuel Pump Relay Testing is this the first fuel pump for your tahoe --if it is their is a known problem - you would need to test and ...
...voltage to the pump. i would switch out the relay. quick way to find out for sure is to switch the a/c clutch relay with the fuel pump relay. it should start if it doesn't then you have a loose wire ...
...fuel pump working first. Did you check the fuse? Can you feel the pump relay click when key is turned to on? Have you checked for a power feed to the relay with key on? You may need to pull the tank ...
...control wire for continuity and repair as necessary, then repeat the test. Connect a grounded test light to the feed wire (orange) at the relay and turn the ignition key ON. The test light should ...
...Fuel pump occasionally comes on for 2 sec prime, but car will stall after 5 seconds. Other times there is no voltage at pump, either to prime, or when cranking. Seems simple, but here is the head ...
...fuel line to see). installed new ignition module, new throttle positioning sensor, and swapped out the ECM from another truck that fires up. getting no voltage to the injectors(what voltage should be ...
...control module (PCM) will default to the speed density in order to calculate the load and the air flow. If this corrects the condition and the connections are OK, replace the MAF sensor. If the steps ...
...voltage is present then check the ohms between the high tension terminal (where the coil wire goes on the ignition coil) and the "Pos" terminal on the ignition coil by first dis-connecting the wires ...
...voltage there at the ignition module, then either the ignition module or the pick-up coil inside of the distributor will be the most likely suspects for the cause of the problem. The ignition module ...
Question about GMC Cars & Trucks
...Control Circuit Low Voltage DTC P0232: Fuel Pump Control Circuit High Voltage DTC P023F: Fuel Pump Control Circuit DTC P025A: Fuel Pump Control Module Enable Circuit Your best bet , take it to a ...
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