Car sat for about a year (in garage) bad fuel pump.
I replace with new fuel pump yesterday. I drained old gas and cleaned out tank. Replaced with new Bosch, and new filter. Put in 5 gallons fresh gas.
Car will start but will only run about 5 seconds then it will die. I also tried it with starting fluid, but same thing. You can hear the pump run, and it has 46 psi, no bleed down.
After I try to start it a few times, it will have to sit a few minutes, before it will try to run when I try to restart.
Has new pump relay, new oil sending unit. Im lost as to what to try next.
This test will need two people. Have someone crank the car while you spray the starting fluid. Keep giving it little spurts into the throttle body (not a constant spray), and see if you can keep it running. Post the result here.
If the car quits on starting fluid, look for an ignition problem with the ICM, or related parts like ignition coil or pickup coil. Those pesky ICMs have so many ways to fail....this might be another one.
(TopNotch) I just tried to start the car, with a friend, using small spurts of starting fluid.
Car will not stay running even with use of starting fluid. It starts and runs for a few seconds. After I release the ignition key, its like it uses the gas in the line then dies. When it dies you can hear the fuel pump re-prime, like its lost pressure, or like the fuel pump shut off, or injectors shut off. Im not a mechanic so im just guessing at things.
As stated in first post, I have 46 psi with no bleed down.
ICM is new, Coil is new, plugs are new. It ran fine up until the old fuel pump went out.
Dont know what to try. Thanks again everyone for the replies.
Car will not stay running even with use of starting fluid. It starts and runs for a few seconds. After I release the ignition key, its like it uses the gas in the line then dies. When it dies you can hear the fuel pump re-prime, like its lost pressure, or like the fuel pump shut off, or injectors shut off. Im not a mechanic so im just guessing at things.
It sounds like your injectors aren't firing.....it could be because they are clogged or there is a wiring issue. The reason it starts then dies is because your cold start injector (CSI) is working. The CSI sprays gas when you first crank the engine over, but shuts off soon after. There is usually enough gas for the car to fire but not enough to actually run.
Check the fuse panel to make sure it's not a blown fuse. Then inspect the injector wiring harness.....unplug it and look at the terminals (they might be corroded). If you can't find anything wrong there then it is likely that the injectors have clogged up. A rebuilt set is fairly cheap.....I've found them on eBay for less than $100 a set (I think I paid $75 the last time I bought some).
When I installed a new Bosch pump in my GT it was doing the same thing. It turned out that I had reversed the polarity on the wires to the fuel pump and the pump was running backwards.
Before you remove anything, crank the engine and watch the oil pressure guage. If it reads halfway up the guage or say 25 psi you should have enough oil pressure to keep the pump energized,if not you need to add a manual guage with a tee at you sending unit and watch it as you crank it, also takes two people. I've installed bad sending units also. It's better than pulling the tank again with no resolution to the problem. I've been working on my 85 for a few years and put 3 pumps in it from sitting! Also you should have a elec. plug there close to the relay area to energize the pump manually. Check your repair manual for the location. That might tell you if the pump is the culprit! Good Luck! If this doesn't help take two aspirin and call back! Doug
Before you remove anything, crank the engine and watch the oil pressure guage. If it reads halfway up the guage or say 25 psi you should have enough oil pressure to keep the pump energized,if not you need to add a manual guage with a tee at you sending unit and watch it as you crank it, also takes two people. I've installed bad sending units also. It's better than pulling the tank again with no resolution to the problem. I've been working on my 85 for a few years and put 3 pumps in it from sitting! Also you should have a elec. plug there close to the relay area to energize the pump manually. Check your repair manual for the location. That might tell you if the pump is the culprit! Good Luck! If this doesn't help take two aspirin and call back! Doug
This shows you have an 84, the pump test connector on 85-88 is in the ALDL.
To the OP have the ICM checked at any autoparts store, I have been sold bad ones before. If it runs then dies check spark output, (use a timing light or just an old plug) You only need 4 things to start a car compression, timing, spark, fuel, since it does start for an instance I would rule out timing and compression, That leaves fuel and spark, just to help you narrow it down.
