My 89 won't run
hippikess
02-25-2005, 09:53 PM
my 89 Ramcharger (with T.B.I.) starts, runs for a few seconds then stops. I have replaced the the; the TPS, MAP sensor, Fuel pressure regulator and checked for vacum leaks at the TBI. full throttle will keep it running for about a minute then fuel stops. I am LOST
fredjacksonsan
02-26-2005, 11:14 AM
Check your fuel pressure when it stops (leaving the ignition ON after it stops) and see if it's still what it should be. You may have something in the filter or tank that's clogging up.
As a second thought, how old is your exhaust? The catalytic converter(s) could be clogging and causing the problem; there have been several posts about that problem in here and it's pretty common. 2k
As a second thought, how old is your exhaust? The catalytic converter(s) could be clogging and causing the problem; there have been several posts about that problem in here and it's pretty common. 2k
hippikess
02-26-2005, 12:24 PM
The Cat is new, 4 months, and fuel pressur is at least 12 and stays there, my gauge only goes to 12 psi
fredjacksonsan
02-26-2005, 12:32 PM
Hmm...odd. Well, is the engine in a good state of tune? Plugs/cap/rotor/wires? I figure it is but had to ask.
Also, how many miles, what engine and has the timing chain ever been replaced?
Is the throttle body injecting/atomizing the fuel?
Also, how many miles, what engine and has the timing chain ever been replaced?
Is the throttle body injecting/atomizing the fuel?
hippikess
02-26-2005, 12:39 PM
Engine miles, not sure. it was an old CDF truck form mountian area and the fuel is atomizing
fredjacksonsan
02-27-2005, 08:43 AM
I have to say I'm stumped also. You've got fuel, air and spark since it runs. And it just quits after a minute.
When it runs, does it run rough or smoothly?
When it runs, does it run rough or smoothly?
hippikess
02-28-2005, 11:12 PM
It runs rich
Dobbskel
02-28-2005, 11:40 PM
It may be a long shot, but I have had a few cars that the oil pressure sending unit got cracked, and it would shut fuel down as soon as you let off of the ignition. Most Cars have this as a safty? Does your Truck leak oil?
hippikess
03-01-2005, 12:20 AM
Yeah it started badly not to long ago I'll try that and get back to you
hippikess
03-04-2005, 12:35 PM
Not the oil sensor, Thank for the idea
1thunder
03-04-2005, 05:33 PM
try disconnecting your fuel return line and le return fuel go into a container want to eliminate return line
going back to tank if it's plugged your fuel pressure will go too high then injectors cannot open just something to try and cost nothing also before starting disconnect pcm for about 15 minutes
going back to tank if it's plugged your fuel pressure will go too high then injectors cannot open just something to try and cost nothing also before starting disconnect pcm for about 15 minutes
hippikess
03-05-2005, 11:25 AM
After elimenating everything else, I tried this yesterday and The truck ran. It cost about four bucks worth of parts and the tank is still on the ground this morning after blowing out the lines with a compressor yester day. But the f*#!?^%$@ thing is running Better than before. Clogged return line. After $ 250 at least worth of parts and the running back and forth to Autozone, and MANY days and nights reading and working on the truck. It's running. Thanks everyone for your help
netmech
03-08-2005, 11:11 PM
sweet
fredjacksonsan
03-09-2005, 08:43 AM
Cool; good solution 1thunder.
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