1985-1998 [Subscribe to Daily Digest] |
 | [Main 9000 Bulletin Board | BBFAQ |
Prev by Date | Next by Date | Post Followup ]
Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Re: will not start after drive home Fuel Pump??? Posted by Ari [Email]  (#2847) [Profile/Gallery]
(more from Ari) on Thu, 19 Jun 2008 18:20:53
In Reply to: will not start after drive home Fuel Pump???, Judd, Thu, 19 Jun 2008 15:05:53 Members do not see ads below this line. - Help Keep This Site Online - Signup |
If the engine runs, even a lumpy idle,the fuel pump is running to some extent.
If it tries to start but dies, I would suspect the fuel pump. It'll catch then die, and after four or five of these, it won't start. That would be the last of the fuel pressure.
The pump relay under the hood isn't the fuel pump. the fuel pump relay is in the relay panel, hidden behind the fuse panel.
Step 1 - turn the key to ON but don't try to start the car. Do you see dash light indicators? BAT, Oil, etc? If you get no lights, then the problem is most likely the ignition switch. Not the key, but the electrical switch behind it.
Step 2 - say the lights do come on. If you can get a voltmeter, put one lead on the fuel pump fuse, the other on electrical ground. Blade-type fuses have little holes in the back so you can stick a meter lead in. When trying to start the car, see what the voltage is on the fuse. If it's 12 volts or so, then power is available to the pump and the fuel pump relay is working - the relay supplies power to the fuse, and then onto the pump. If you get no voltage on the fuse when cranking the engine, I'd suspect the Crank Position Sensor (CPS).
Another possibility is a bad DI. The easiest way to check is to replace it with a known good DI. If you don't have one, pull out the DI and flip it over. Grab four extra spark plugs, and stick them into the sockets on the DI. Make sure you ground all four plugs to chassis. Crank the engine and see if the plugs spark. I don't recommend using the plugs in the car, because if you pull out the plugs, the open spark plug holes can suck in dirt.
If the car can idle a bit, I'd suspect the DI.
posted by 76.252.196...
, Thu, 19 Jun 2008 18:20:53 <-- Viewing This Message
No Site Registration is Required to Post - Site Membership is optional (Member Features List), but helps to keep the site online
for all Saabers. If the site helps you, please consider helping the site by becoming a member.
 |
 |
 |
 |
 |
