2002 GMC Envoy "wire fuel pump direct 02" Questions

...fuel pump fuse via the blue wire coming from the relay????? have you checked the timing belt??have you tried running a wire from the battery direct to the fuel pump ?? I had the same thing happen to ...

...fuel pumps out then its most likely spark then you must track it down are you getting spark at plugs if not then check your cap and rotor if so check your wires it is in there somewhere I cannot give ...

...fuel pump and the gas gauge is still stuck of full. WELL IT IS A SIMPLE CIRCUIT MOST ARE BLOW FUSE BAD WIRING TANK SENDER DEAD. RARE BAD METER. did you first SCAN the PCM to see what is up first/ ...

fuel pump 3 months ago. Also changed the distributer cap,rotor,spark plugs and wires then too. Just replaced the plugs again yesterday,they already looked bad. Can you help with a direction to look? I

fuel pressure spec is. 44..2, to 54.2. 3.9 still has that old distributor there, so add cap,rotor wire sets HV. and spark plugs none of those cap on last 24 years ever so. but no code p03xx so is lost

...wire ,renewed the earth and sorted like a good one ,but problem was the car had the shut off on the earth return via immobilisor so i wired in a relay ,seems strange to leave a live feed to a petrol ...

...fuel level sen. curcuit signal high open and p1189 engine oil pressure switch circui. after changing the oil pressure switch it still will not start and there are now no codes coming up but the ...

fuel is getting into oil pan For more oil and oil pump details check out the direct links below: ---  How to Replace Oil Pan on ...

...fuel pump or fuel pump relay. But based on your symptoms if it starts good, and idles ok, but then dies after driving some, I am thinking fuel filter or 02 sensor. I wish I could say more, but with ...

fuel pump and line pressure tests. Passed vacuum leak test as well. I'm starting to think head gasket leak, am I headed in the right direction? this has been ongoing, any help would be appreciated