Hi guys...I have more vans than I can count...been building them just as long..just can't figure this one..88 b250,3.9v6...good cold start,when hot,shut it off..10 seconds later no start,until cold again..bear in mind I am an old school engine builder, so could be later generation electronics..I am not familiar with...I'm a 60's motor guy,so...any clues?...thanks... :help: :help:
90d250
07-30-2005, 09:15 PM
sounds like the problem i had with a john deere lawn tractor a few years ago. turns out to be the coil getting hot and wouldnt start again till it was cold. just a thought. other than that maybe a sensor in the starter or the thermostat getting to hot or sending a false signal.
bocephus
07-30-2005, 09:16 PM
thanks...yeah..there's a new coil,wires,plugs,etc....
Dodgevanman
07-31-2005, 08:24 AM
When this occurs are you getting spark and fuel?
bocephus
07-31-2005, 11:16 AM
Here's the good part.....sometimes yes,other times no..???? What do you think on both situations...got me stumped
Dodgevanman
07-31-2005, 09:40 PM
It could be the Auto Shutdown Relay (ASD Relay) going bad. It's located on the firewall. It powers up the fuel pump, coil, and injectors via the ECM.
laylowcustoms
08-05-2005, 06:09 PM
STARTER!!!!!!!!!!!!!!!!!!!!!!!!!! I'll put $20 bucks on it. My 87 b250 did the same thing had to sit for at least 30 min between runnings to cool down. Replace the starter and never happened again. Also I noticed that my van would sometimes die and onece it cooled off enough it ran fine.
bocephus
08-05-2005, 07:17 PM
Thanks for the input...but the starter is ok...not overheating, and cranks fine...even after hot...just get a no start.....I haven't messed with it yet...too many other things to do..I expect it's elec. I hear the pump run...I'll assume there is sufficient pressure until I test it further, so I don't think it's fuel..
90d250
08-05-2005, 08:38 PM
check your wire harness. my d250 did the same thing and after replacing the starter, ignition switchs and trying fuses turns out th PO did some wiring and tapped into the harness and everytime it would heat up the harness moved just a little and would short out. just a thought
laylowcustoms
08-05-2005, 11:09 PM
when mine did it my you could hear the ignition click but the stater wouldn't move.
Ram3500Dually
08-06-2005, 04:43 AM
Pickup coil in the bottom of distributor.
bocephus
08-08-2005, 09:54 PM
thanks for all your input...I went back to zero and found that the new coil..was defective from the shelf....don't take anything for granted..HAHA
