My 85 won't start

[gmhowe]

Backed it into the driveway yesterday it died but it was where it was supposed to be so didn't think anything about it. Went to start it today and it tried, sputtered then just cranks with nothin. Any ideas ? :confused

 

[3dale1]

Sounds like a fuel issue if it sputters, so I am assuming spark is OK.

Turn the key just to on and listen for the fuel pump.

If you don't have a guage, depress the shrader valve on the fuel rail to see if you have pressure

Check fuses

On your ALDL, one of the pins (not sure which one, do a search) provides power to the fuel pump. Jumping this may tell you if you have a wiring problem.

These would probably be where I'd start!

 

[gmhowe]

I swapped out the fuel pump ( had a spare ) and same thing, it will run for about 3-5 sec then die. Checked the fuel pressure, had 12 lb with key on but did not change during the 3-5 seconds running.

 

[gmhowe]

Forgot to ask what is the ALDL ?

 

[bossvette]

I swapped out the fuel pump ( had a spare ) and same thing, it will run for about 3-5 sec then die. Checked the fuel pressure, had 12 lb with key on but did not change during the 3-5 seconds running.

Should have more then 12lbs more like 35-40 try the fuel filter

ALDL is where you plug in the scanner its the diagnostic link

 

[3dale1]

Should have more then 12lbs more like 35-40 try the fuel filter

ALDL is where you plug in the scanner its the diagnostic link

I agree, 12lbs is way too low.

 

[gmhowe]

The 12 lb is just turning the key on.

 

[gmhowe]

When the car died in the driveway it died like like when you let the clutch out with the brake on, could the timing have gotten jacked with the hard die ?

 

[bossvette]

when you turn on the key the pump will run for @ 30 seconds to pressurize the system should be a min of 35 lbs for a TPI
12 is correct for TBI also the fuel filter is directional and if installed wrong can impede flow. 82 and 84 were TBI and used a lower pressure pump then 85+

 

[gmhowe]

changed filter same thing, changed pressure regulator same thing, was ready to replace fuel pump and noticed the Pulsator had a rip in it, replaced it and car runs now and is at 36 psi, only the car now idles between 3600-4000 rpm and sounds like its ready to die, any ideas ? could sumthing have happed during the regulator change and the plenium off, maybe the throttle cable ???
and thanx to Speedmaster4 for the pulsator info