1st Gen Ram Tech'93 & older Rams: This section is for TECHNICAL discussions only, that involve 1993 Rams and older. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
I am new so be patient. my problem is: I just bought this dodge ram d150 and i'm already having problems. the truck will be going down the road fine when it will just shut off.I try to start it and it will not start. I'll try a few times then all of a sudden it will start I took this truck to the mechanic and they said that the distributor was at fault. so after 600.00 bucks I get the truck back and it does the same thing. I check for spark at the plug no spark,I check for spark at the coil no spark. ten minutes later the truck will start and run fine. what can I check next? asd,pcm? where does the power to the coil come from? is it routed through the powertrain control module? or does it come directly from the battery through another relay? Help plz. I like this truck but am not going to sink a fortune in it
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Thanks guys for the reply.
I went back to the mechanic its in the shop again.originally he
said that there was a problem with the hall effect pickup. but my
thing is if there is no spark to the distributor then the hall effect
pickup would show a code right?.I think instead tracking the problem he went for the first trouble code and replaced the
distributor. these guys are usually good at the electronics.
My truck did this to where it would start only in the afternoon around 3:00, try in the morning and it would just crank. Ended up being the computer was fried. Also since the computer was screwed, it wouldn't show any codes, the conventional way and with a scanner.
Dodge's are the meanest looking trucks on the road.
well, I got the truck back because they cant reproduce the problem. i went to the store and it stalled. I'm getting ready to send it to the crusherim gonna try replacing the cran position sensor and already replaced the coil I'll let you know
I changed the coil spark is good. now I noticed when I was looking at the tbi that one injector was s[rayng alot more than the other so I took out and sprayed it with wd40.and I noticed that the fuel pressure regulator was hooked up to a port with no vacumn at idle. so I hooked it up to one that did,has not stalled since?so far, can somebody tell me where it is hooked up on theirs?
No spark and no gas would point to the camshaft position sensor in the distributor, or a bad connection to that sensor. While I'm more familiar with fords, the general thing with fuel injection from any maker, is that the computer won't fire the sparkplugs or the fuel injectors until a signal is detected from the camshaft or crankshaft position sensor
I've checked just about everything asd new, wot relays are good
jumped out the ignition switch,new distributor, with new hall effect sensor. its back at the shop now. hopefully they won't say that they can't reproduce the problem it stalled and would'nt start on the way there. after about 10 or so tries it started.I think your right about the computer. its probably screwed. I'll keep you guys updated.
hey guys, i went to the shop to check on progress they could'nt
recreate the problem again so I waited and it stalled and died right there. the mechanic verified no spark no gas and narrowed it down to a splice or the ecu one pin on the ecu is not powering up hopefully this is the end I'll let you know with pics of my truck
project thanks to all of you for your help.
this truck is nuts the mechanic replaced the ecm nine times all the units except two ran for awhile then died,the stupidest thing is this asd relay. I can't jump it out,won't run without it. I'm going to give up and send this piece of crap to the crusher.Now waiting on one more computer from allcomputer resources.if this doesn't do it,finding another truck not a dodge. Sorry guys
hey guys my truck is finally running decent,(keeping my fingers crossed)I took it to another mechanic that found a bad ground.computer was fried so replaced that and now is running fine. the distributor that the other mechanic put in was also bad everytime they wiggled the pig tail the asd would shut the motor down.phew. i'll post pics soon.
I appreciate all the help and support