Question about Dodge Ram B150

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1994 Dodge B150 won't start

I have a 1994 Dodge B150 with 90,000 miles on it. It is having trouble starting. Battery & wires are fine. We thought it might be the fuel pump so we had it replaced. Two days later, won't start again. Had a tune up done, plugs and wires replaced. The van still won't start. I can not seem to figure out what the problem is, I had a mechanic look at it and I am being told that the check engine light will not come on and I need to replace the computer, but he is not sure if this will solve the problem. Has anyone had the same problem or know how to fix it? Thanks.

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  • Dodge Master
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Your mechanic may be correct about your computer? On older vehicles, I've seen where the check engine lite was burnt out. On some of these, I hooked up a scanner to the data link connector, the scanner shows live engine data, even if the vehicle won't start, you can get some info, if the computer is ok. No, I couldn't get trouble codes. I don't know what testing was done by you or the mechanic?
You can test the basics, make sure battery has a full charge. If it cranks good but won't start, have a helper crank it while you visually check for spark at the spark plugs, where applicable. If spark everywhere, use a gage and check proper fuel pressure and fuel injector pulse.

Posted on Apr 26, 2017

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I would not trust that mechanic. He is not much help-a good mechanic will see if the bulb for the CEL is bad, and will check for voltage to the light with key in ON. Even if no voltage shows, one must first check the continuity of that wire from the computer to the light before condemning the computer. And even before that, one needs to check that the pcm is getting proper power to it for it to turn on. So any mechanic who looks at it must have access to a wiring diagram, and use it for testing..
At least your mechanic is honest about not being sure of the fix. Maybe he is right in his guess that the pcm is bad, but if he is wrong, you have thrown more money without getting it fixed.

Posted on Apr 26, 2017

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SOURCE: 96 Ford Windstar runs rough, check engine light on

Sounds like you have some EGR ports clogged up, remove the intake and look at the egr ports all but
#1 cyl port will probably be at least partially clogged, hope this helps

Posted on Nov 18, 2008

SOURCE: o2 lincoln ls check engine

You have two pumps,I guess you know that ,if you already did one. Did you check fuel pressure at the rail and check out the electronic pressure regulator? What codes are coming up and do they stay set?

Posted on Feb 09, 2010

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