Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
1994 Chevrolet Camaro 3.4L vin S SFI 6cyl.
For the wiring diagrams, click here, here and here. Refer to the 1st wiring diagram and check the PCM IGN Fuse #5 15A (hot in run or start), in the I/P Fuse block. If ok, you should hear the fuel pump run for the first 2 seconds the key is turned to run. If not and fuse is ok, check for voltage at the gray wire coming off the fuel pump relay. You could also connect a fused jumper wire to the fuel pump prime connector and test the pump and wiring to it. If no voltage at the gray wire, check for power to the relay at the pink wire. If ok, check the ground or jump to a good ground from the black/white wire. If the fuel pump still don't run check for the signal voltage from the dark/green wire with key on run for first 2 seconds.
If pump runs and it still will not start check for codes. Check if check engine light is on or flashing. Refer to diagram #2 and check the fuel injector fuses, the #9 and #10 both 7.5A (hot in run or start) in the underhood electrical center. If ok, check for voltage at each injector at the pink/black wires. If ok and still no start, check for a voltage pulse with a noid light on the wires coming out of injectors leading to the PCM.
today im trying to find a way to get the gas in it out cuz i thinks its clogged the fuel lines, or something...so can i unplug the filter and turn the key over one click to get it pumpin out until its dry then fill it back up..cuz the fuel in it has pollen and everything in it..the last time is ran it was running fine then when i pressed on the gas its bogg down then go up then i cut the car off and it never started back up...should i fuel pressure test it befor i do anything and tell you what i get?
The fuel pump will probably only run for 2 seconds unless the engine starts or is being cranked. They is a way to keep the fuel pump running though if the fuel pump does in fact run and that is to hook a fused jumper wire to the fuel pump prime connector at the gray wire as seen in that first diagram. Yes you should pressure test it as well as a volume test. The pressure should be 41-47 PSI with A/C system off and ignition on run. Volume should fill a pint glass jar in about 30 seconds.
If you recently poured any fuel system cleaner into the gas tank you may have dislodged and bunch of dirt, rust and whatnot and it may be clogging not only the fuel filter but the pickup screen on the fuel pump. Also, if the gas is more than 1 year old it may be stale. Also, if you constantly run on less than 1/8th of a tank it may have water in it.
Theres a clink from something when i turn the key over..all the gear turn over but how am i suppose to hear the fuel pump start turnin on?
If you cannot hear it from where you are at have someone else turn the key to on while you take off the gas cap and put your ear up to the filler neck and listen for the fuel pump to kick on.
Unless of course you have a fuel pressure gauge you could just hook that up.
You really should be using starting fluid, its more flammable.
1994 Chevrolet Camaro 3.4L SFI 6cyl.
Did you check the voltage to the fuel injectors and the pulse?
What I would do is get a hand siphon pump and if the hose is not long enough to fit down into the tank get an extra hose and hose clamp. Siphon the tank dry then add at least 5 gallons of new fresh gas and also some drygas to help absorb any water.
Well, that would depend on whether or not the fuel pump is getting voltage or not. I thought you said before, "i disconnected the fuel filter from the fuel pump to see if it push out and it did" Nonetheless, check for voltage to the fuel pump first at the gray wire. Also, I was thinking last nite when you asked about draining the tank. You could disconnect the fuel filter and hook a fused jumper wire to the prime connector at the fuel pump relay and pump the fuel out if the fuel pump does work.