1990 dodge d150 ignition problems

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1990 dodge d150 ignition problems - 5/16/2008 7:38:44 AM    mikey821   Posts: 8 Joined: 5/16/2008 Status: offline Hi folks,           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 Post #: 1

RE: 1990 dodge d150 ignition problems - 5/16/2008 10:13:28 AM    driveramsII   Posts: 47 Joined: 4/1/2008 Status: offline Check your codes... it should tell ya where to look Turn key "on"-"off"-"on"-"off"-"on"  then count the flashes of the check engine light... "on" is not start (in reply to mikey821) Post #: 2

RE: 1990 dodge d150 ignition problems - 5/16/2008 5:23:53 PM    moparborn Posts: 416 Joined: 9/9/2007 From: Pittsburgh,PA. Status: offline First I would go back to the mechanic and complain,for that kind of money you should be having no problems. Check and clean all related connections,maybe some dielectric grease to. _____________________________ (in reply to driveramsII) Post #: 3

RE: 1990 dodge d150 ignition problems - 5/17/2008 1:54:39 AM    mikey821   Posts: 8 Joined: 5/16/2008 Status: offline 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. (in reply to mikey821) Post #: 4

RE: 1990 dodge d150 ignition problems - 5/17/2008 7:01:46 AM    nemesis_SS   Posts: 311 Joined: 1/21/2008 Status: offline im fairly certain that a bad hall effect sensor should throw a code 11 (no crank/ignition reference signal detected during engine cranking) by the way some shop manuals give a different explanation for that code. anyhow just do the old onoffonoffonoff flash check. and like moparborn says, 600 bucks is real money. _____________________________ '91 D150, standard cab, standard bed '63 Rambler American 330 (in reply to mikey821) Post #: 5

RE: 1990 dodge d150 ignition problems - 5/17/2008 7:09:19 AM    nemesis_SS   Posts: 311 Joined: 1/21/2008 Status: offline ive googled you problem and somebody on another forum had a cranky engine which started or didnt start at random. he changed a hall effect sensor _____________________________ '91 D150, standard cab, standard bed '63 Rambler American 330 (in reply to nemesis_SS) Post #: 6

RE: 1990 dodge d150 ignition problems - 5/17/2008 9:48:31 AM    mikey821   Posts: 8 Joined: 5/16/2008 Status: offline Thanks guys I really appreciate the input. I won't get the truck back until mon or so I'll let you know it was driving me crazy. (in reply to nemesis_SS) Post #: 7

RE: 1990 dodge d150 ignition problems - 5/20/2008 4:49:20 AM    Jacob1   Posts: 267 Joined: 8/14/2006 Status: offline 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. (in reply to mikey821) Post #: 8

RE: 1990 dodge d150 ignition problems - 5/23/2008 2:39:36 AM    mikey821   Posts: 8 Joined: 5/16/2008 Status: offline 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 (in reply to Jacob1) Post #: 9

RE: 1990 dodge d150 ignition problems - 5/23/2008 6:13:53 AM    dragonmaster69   Posts: 37 Joined: 2/3/2008 Status: offline hopefully you got some of your money back or they didnt charge you for this time in the shop. if they did they are bad people because they didnt fix it right th first time. (in reply to mikey821) Post #: 10

RE: 1990 dodge d150 ignition problems - 5/23/2008 12:20:39 PM    mikey821   Posts: 8 Joined: 5/16/2008 Status: offline 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? (in reply to dragonmaster69) Post #: 11

RE: 1990 dodge d150 ignition problems - 5/23/2008 5:27:13 PM    mikey821   Posts: 8 Joined: 5/16/2008 Status: offline I don't Believe it running fine this morning now nothing Arrgh!!!!!!!!! no spark no gas I'm about to give up. (in reply to mikey821) Post #: 12

RE: 1990 dodge d150 ignition problems - 5/27/2008 8:51:12 AM    Lead Head   Posts: 21 Joined: 8/5/2007 Status: offline 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 (in reply to mikey821) Post #: 13

RE: 1990 dodge d150 ignition problems - 5/28/2008 6:35:38 AM    tom01973   Posts: 74 Joined: 4/29/2008 Status: offline check the asd relay.it controls power to the fuel pump relay and grounds the ignition coil as well when they go bad it usually acts like this (in reply to Lead Head) Post #: 14

RE: 1990 dodge d150 ignition problems - 5/29/2008 5:00:25 AM    mikey821   Posts: 8 Joined: 5/16/2008 Status: offline 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. (in reply to tom01973) Post #: 15

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