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1997 Dodge Ram engine wont start

Tiny
RICHS46
  • MEMBER
  • 1997 DODGE RAM
  • V8
  • 4WD
  • AUTOMATIC
  • 80,000 MILES
It was -20 out and I tryed to start my truck and it fired a few times but would't start, batt. Went down so I put charger on it with 200 amp boost, still woudnt start, I fugured the oil was too thick I changed it to a thinner oil, now it cranks over fast but still won, t fire. I tryed starting fluid no help it seems like there is no spark
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Friday, January 16th, 2009 AT 1:29 PM

18 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check fuse no.9 10amp if okay-test the ASD relay it powers the coil
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Friday, January 16th, 2009 AT 1:43 PM
Tiny
RICHS46
  • MEMBER
  • 11 POSTS
That fuse is good and I swaped the relays around
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Friday, January 16th, 2009 AT 1:55 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Have helper turn key to run while you listen to the ASD relay did it click
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Friday, January 16th, 2009 AT 2:03 PM
Tiny
RICHS46
  • MEMBER
  • 11 POSTS
I dont have anyone here to help me but I had the key in the run position and pluged the relay in and didnt hear no click. I just checked for power at the coil too. No power there
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Friday, January 16th, 2009 AT 2:12 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
I want you to check for power at the fuel pump connector dark green and black wire -do you have it
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Friday, January 16th, 2009 AT 2:55 PM
Tiny
RICHS46
  • MEMBER
  • 11 POSTS
I cant find the connector for the fuel pump.I do smell gas at the tail pipe when I crank it over
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Friday, January 16th, 2009 AT 3:29 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Do you know how to check for spark?
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Friday, January 16th, 2009 AT 3:58 PM
Tiny
RICHS46
  • MEMBER
  • 11 POSTS
When my wife gets home from work I can have her crank it over and I can check for spark
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Friday, January 16th, 2009 AT 4:07 PM
Tiny
RICHS46
  • MEMBER
  • 11 POSTS
No spark at the coil when my wife cranked it over
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Friday, January 16th, 2009 AT 5:17 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Test the ASD relay and get back with me.
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Friday, January 16th, 2009 AT 10:38 PM
Tiny
RICHS46
  • MEMBER
  • 11 POSTS
Ok I replaced the asd relay with a new one still no spark
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Saturday, January 17th, 2009 AT 10:08 AM
Tiny
RICHS46
  • MEMBER
  • 11 POSTS
I rented a scan tool and I get an error message when I try ro check for codes, it says verify the control module is not defective
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Saturday, January 17th, 2009 AT 12:19 PM
Tiny
RASMATAZ
  • MECHANIC
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Your ignition system is it a distributor/DIS or COP?
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Saturday, January 17th, 2009 AT 2:46 PM
Tiny
RICHS46
  • MEMBER
  • 11 POSTS
It has a distributor, I just checked and I have power to the ecm and both ground wires are grounded I think I have a bad ecm
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Saturday, January 17th, 2009 AT 2:54 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
The ECM are you refering it as the computer or the ignition control module?

Best test the coil, distributor pick-up coil, camshaft and crankshaft sensors before you think about the brain its expensive-get back and let me know
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Saturday, January 17th, 2009 AT 4:08 PM
Tiny
RICHS46
  • MEMBER
  • 11 POSTS
The check engine light is not coming on when I turn on the key and no power to the fuel pump and no power to the injectors or the coil, so im thinking its the computer, I found a rebuilt on on ebay for$189. W/exchange
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Saturday, January 17th, 2009 AT 5:00 PM
Tiny
RASMATAZ
  • MECHANIC
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You're getting down with the computer-If the ASD relay is not energized by the computer you'll lose all 3 of them-
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Saturday, January 17th, 2009 AT 5:11 PM
Tiny
RICHS46
  • MEMBER
  • 11 POSTS
I replaced the ecm with a new one and my truck started right up. Thanks for your help
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Saturday, January 24th, 2009 AT 4:13 PM

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