2nd Gen Dakota Tech 1997 - 2004 Dodge Dakota Tech - The ultimate forum for technical help on the 2nd Gen Dakota.

02 3.9L Starting Problems

Thread Tools
 
Search this Thread
 
  #1  
Old 06-26-2007, 01:12 PM
EPA570's Avatar
EPA570
EPA570 is offline
Thread Starter
Join Date: Jun 2007
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Default 02 3.9L Starting Problems

Hi everyone,
Nice forums you have here. Was hoping somebody might have a direction I can go get my truck to strart again. It died this weekand I cannot seem to be able to get it to start. This is what I have done so far. The truck is completely stock.

1. Checked the fuel system and fuel pump works and it is getting fuel pressure to the rail.
2. I have replaced all the igintion stuff......wires/rotor/cap/plugs...needed it put didnt fix it.
3. There seems to be no spark. I remove 2 plug and grounded and I am not getting a spark.
4. I also grounded the coil wire coming from the coil and I also see no spark. I get 10-12 volts on input of the coil but I can find anything in the book to tell what other tests I can do to make sure thats the problem.
5.What else can I check just to verify its not sensor somewhere.

I am trying to determine if that is the best way to test the coil and what else I need to do to make sure it isthat before I spend the money. Do the coils on these truck go out alot?

Thanks to Anyone that can help.

Eddie
 
  #2  
Old 06-26-2007, 04:19 PM
f0x672's Avatar
f0x672
f0x672 is offline
Champion
Join Date: Aug 2006
Location: poconos, pa
Posts: 2,530
Likes: 0
Received 1 Like on 1 Post
Default RE: 02 3.9L Starting Problems

sounds like your coil is definately gone...
 
  #3  
Old 06-26-2007, 07:43 PM
ltl grn dakota's Avatar
ltl grn dakota
ltl grn dakota is offline
Join Date: Apr 2007
Location:
Posts: 8
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 02 3.9L Starting Problems

check your cam postion sensor in the distrbutor , mine went last week. the dealer ended up replacing the distrbutor becauseof a faulty bushing . also check the crankshaft postion sensor. no signal no spark.
hallalua for extended warranties.
 
  #4  
Old 06-26-2007, 08:23 PM
EPA570's Avatar
EPA570
EPA570 is offline
Thread Starter
Join Date: Jun 2007
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 02 3.9L Starting Problems

Can you point me to something that will tell me how to test the sensors... Can it dont with a voltmeter or it is something I cant do myself?
 
  #5  
Old 06-26-2007, 09:45 PM
varsis's Avatar
varsis
varsis is offline
Record Breaker
Join Date: Oct 2006
Posts: 2,320
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 02 3.9L Starting Problems

Does other electrical work? Like your battery might be gone or alternator.
 
  #6  
Old 06-26-2007, 11:31 PM
EPA570's Avatar
EPA570
EPA570 is offline
Thread Starter
Join Date: Jun 2007
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 02 3.9L Starting Problems

I tested the coil the resis. are 1.7 and 17k. Are these too high or is this acceptable?
 
  #7  
Old 06-28-2007, 12:09 AM
EPA570's Avatar
EPA570
EPA570 is offline
Thread Starter
Join Date: Jun 2007
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 02 3.9L Starting Problems

OK we replaced the coil and it still wont start.. Kinda at a lose as to what else it could be.
 
  #8  
Old 06-28-2007, 01:38 AM
imnothot02's Avatar
imnothot02
imnothot02 is offline
Record Breaker
Join Date: Jul 2005
Location:
Posts: 2,244
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 02 3.9L Starting Problems

no spark at all, correct..

have the distributor checked first, be my guess..
 
  #9  
Old 06-28-2007, 12:33 PM
shrpshtr325's Avatar
shrpshtr325
shrpshtr325 is offline
THE ULTI-MOD
Join Date: Jan 2007
Location: Union NJ
Posts: 19,793
Received 33 Likes on 31 Posts
Default RE: 02 3.9L Starting Problems

he already replaced it i would check the cam position sensor personally, or replace it if the $$$ is there id just replace it right out
 
  #10  
Old 06-28-2007, 05:19 PM
deranged's Avatar
deranged
deranged is offline
Record Breaker
Join Date: Nov 2005
Posts: 2,064
Likes: 0
Received 1 Like on 1 Post
Default RE: 02 3.9L Starting Problems

The cam and crank position sensors are prone to trouble. Better check 'em.
 



Quick Reply: 02 3.9L Starting Problems



All times are GMT -4. The time now is 01:54 PM.