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Thread: Not Starting (SOLVED, I Think)

  1. #1

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    Not Starting (SOLVED, I Think)

    hi, my name is bob, been lurking for a while, i bought my mighty max a few months ago and have slowly been getting it up and running. its a 1990 2.6 4speed auto, i got mine off a farm in nj with only 36000 miles on it! after plugs, wires, new air filter(didnt have one,just a rag stuffed in it) oil change and a lot of cleaning, its ran great. this week it doesnt want to kick over now. gonna do a fuel filter if it doesnt rain tomorrow. any other suggestions as to stuff i should look at?
    Last edited by camoit; 02-12-2012 at 12:08 PM.

  2. #2



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    Did you put a cap and rotor in it? You might have got some water in something.
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  3. #3

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    i did do a cap and rotor, that was prob 6 weeks ago. it was running fine until last weekend. changed the fuel filter today,didnt seem to get any better. if i step on the gas a little bit, it starts up. i looked at the cap n rotor i installed, and that looked good.

  4. #4

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    so its completly dead now. my dad thinks it could be an ignition module. any thoughts on that? he better be right cause its stuck out front of his house now! the truck cranks strong like it wants to start, either no spark or fuel? im hoping to get it back to my house tomorrow to try n work on it some more.

  5. #5


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    Easy way to check spark. step 1- Remove spark plug wire from spark plug. Step 2- insert screwdriver into boot. Step 3- hold screwdriver about 1/2" from any metal of the engine. Step 4- have someone crank the engine. Step 5-look for spark between Screwdriver and engine, if no spark then the module is probably shot. CAUTION: HOLD SCREWDRIVER BY HANDLE BECAUSE IF THERE IS SPARK YOU'RE GOING TO GET ZAPPED!!!!

  6. #6

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    thanks! ill be trying that tomorrow.

  7. #7

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    so i has no spark, i took it to a budy of mine that has a shop, he has tried multiple things including coil, key tumbler, ignition mod, and im sure more that he has said. he thinks its a bad computor, or a short in the wiring. it has no spark and no fuel pressure. its killin me.

  8. #8



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    crank or cam position sensor is the first thing I would go to.
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  9. #9

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    im new to all of this, could u elaborate more please. i was a few days from ordering a complete lowering kit for the truck, guess its a good thing i didnt. ive seen some people have had the computer rebuilt, how much does that cost? i got a estimate from a shop for $600.

  10. #10

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    here is a remanufactured computer for $354 http://www.usautoparts.net/catalog/?...921+4294964709. this site has a lot of things for mighty max's and d-50's. i would definetly check your cam and crank sensors first before buying a new computer. hope the link helps.

  11. #11

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    how do i find that?the crank sensor that is. my mechanic says there isnt one on the truck. i think im starting to piss him off

  12. #12

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    and thanks powerram348, thats a lot less then what i was told.

  13. #13

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    your welcome. check for a cam position sensor like camoit said. if you want to find a lot of links to most anything for our trucks look in the links section. let us know what happens.
    Last edited by PowerRam348; 10-12-2011 at 04:40 PM.

  14. #14



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    If its a 2.6, it don't have a cam sensor or crank sensor. Is it carbed or fuel injected? if carbed, the computer controls the carb only. 1989 was the last year for the 2.6; if it is a 2.6, its been swapped; more likely its a 4g64 2.4 l - look at the tag on the firewall.
    Pennyman1
    The best Dodge that Dodge never made
    Living the D-50 lifestyle since 1980

  15. #15

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    I used Foreign Auto Computer Repair in Zephyrhill, FL after they were highly recommended by a local Mitsubishi shop. He has been using them for years. With 2nd day postage, they rebuilt mine for a '90 3.0 for $215. and I had it back within a week. I've also called them for advice on a couple of other trucks and found them very helpful. I would definitely use them again.

    Foreign Auto Computer Repair
    37216 Chancey Rd
    Zephyrhills, FL 33541
    (813) 788-7671

  16. #16

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    to pennyman1, u are correct, it is a 2.4, not a 2.6. it is fuel injected also.
    and to lush90, that is an even better price. im glad ive been askin. so is there a crank sensor on a 2.4?

  17. #17

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    the cam/cranks sensor is colled a photo optic sensing unit its inside the distributor. thats how it was on my 3.0 mighty max.

  18. #18

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    i dont have an extra key to the truck and its at my friens shop, im looking for the ecu part number anyone know it? 1990 2.4l fuel injected auto 4 speed. ive been looking and came up with 3 different part numbers, trying to make sure i get the right one. md143273, md144743, and md155029. i think the last one is correct, but im not 100percent sure. i really cant wait to get my truck back to start lowering it.

  19. #19



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    Theres no marking on the computer box?
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  20. #20

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    i havent been to the truck for a week. grandma passed away and ive been doing family stuff. i wasnt sure if there was a number that someone knew. i went to the shop today, said its the comp. getting a new one at the end of the week hopefully.

  21. #21

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    got back to the truck, got the computer # and ordered from foreign auto repair. they had the best price and good warranty. 18 month and $300 for the comp, then $50 return when i give them my comp. i should have it between mon-wed. thanks lush90 for sugesting them. the price was way better than anyone else i contacted.

  22. #22

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    Any updates?

  23. #23

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    computor was supposed to be here yesterday, post office left me a letter that i needed to sign for it, i went there and they cant find the box. im hoping they show up today with it, ive been waiting at the house, im not missing them again.

  24. #24

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    found the computor at a different usps store, cant believe they had the wrong address to there own building. gave it to my friend, he said ill know if thats it tomorrow. im working so im leaving it in his hands. hope i get good news.

  25. #25

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    so after putting the rebuilt ecu in, it started right up, ran for about 5mins, and is now doing the same thing it was before. i think we fried the new ecu.

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