Dodge Ram Van The full size Dodge Ram Van that showed that we can go and do as we please. Discuss the Dodge Ram Van here today.

spark weak and charging issues???

Thread Tools
 
Search this Thread
 
  #11  
Old 02-25-2010, 07:53 AM
Mobile Auto Repair's Avatar
Mobile Auto Repair
Mobile Auto Repair is offline
Record Breaker
Join Date: May 2008
Location: North TX
Posts: 1,175
Likes: 0
Received 1 Like on 1 Post
Default

If you can check across the coils negative ground wire connection to the coil pack. You know you have 13.4 on the coils positive input wire and the engine block. What you want to verify is that the coils negative wire is carrying its load back to the block. Do not try to measure the output side of the coil pack going to the distributor cap.
 
  #12  
Old 02-25-2010, 09:47 AM
dragontrlr's Avatar
dragontrlr
dragontrlr is offline
Professional
Thread Starter
Join Date: Feb 2010
Posts: 109
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Mobile Auto Repair
If you can check across the coils negative ground wire connection to the coil pack. You know you have 13.4 on the coils positive input wire and the engine block. What you want to verify is that the coils negative wire is carrying its load back to the block. Do not try to measure the output side of the coil pack going to the distributor cap.
okay i am not sure how i would measure what you are asking. keep in mind i have old barrel style coil. do i put red term on positive coil post and black wire on negative coil post?
 
  #13  
Old 02-25-2010, 10:09 AM
alloro's Avatar
alloro
alloro is offline
Van & CUV Section Moderator
Dodge Forum Moderator
Join Date: Nov 2006
Posts: 5,155
Received 78 Likes on 72 Posts
Default

Originally Posted by dragontrlr
okay i am not sure how i would measure what you are asking.
He's asking what the voltage is across the primary terminals of the coil is. In other words, do not measure voltage from the coil to the engine block, vehicle body, or battery negative. Measure across the +/- terminals.
 
  #14  
Old 02-25-2010, 10:19 AM
dragontrlr's Avatar
dragontrlr
dragontrlr is offline
Professional
Thread Starter
Join Date: Feb 2010
Posts: 109
Likes: 0
Received 0 Likes on 0 Posts
Default

when i measure across the terminals my digital multimeter goes to fault (actually 1). i assumed i was measuring something wrong.?? i have the multi meter set to 20v.
 
  #15  
Old 02-25-2010, 10:58 AM
alloro's Avatar
alloro
alloro is offline
Van & CUV Section Moderator
Dodge Forum Moderator
Join Date: Nov 2006
Posts: 5,155
Received 78 Likes on 72 Posts
Default

Was the engine running?
 
  #16  
Old 02-25-2010, 12:58 PM
dragontrlr's Avatar
dragontrlr
dragontrlr is offline
Professional
Thread Starter
Join Date: Feb 2010
Posts: 109
Likes: 0
Received 0 Likes on 0 Posts
Default

yes with engine running
 
  #17  
Old 02-25-2010, 01:13 PM
alloro's Avatar
alloro
alloro is offline
Van & CUV Section Moderator
Dodge Forum Moderator
Join Date: Nov 2006
Posts: 5,155
Received 78 Likes on 72 Posts
Default

It should read somewhere around 6-8 volts.
 
  #18  
Old 02-25-2010, 01:39 PM
dragontrlr's Avatar
dragontrlr
dragontrlr is offline
Professional
Thread Starter
Join Date: Feb 2010
Posts: 109
Likes: 0
Received 0 Likes on 0 Posts
Default

so i have this in my mind before i go test this. positive term on coil red to meter. ground term on coil to black on meter when engine is running i should have 6-8 volts?
 
  #19  
Old 02-25-2010, 03:32 PM
alloro's Avatar
alloro
alloro is offline
Van & CUV Section Moderator
Dodge Forum Moderator
Join Date: Nov 2006
Posts: 5,155
Received 78 Likes on 72 Posts
Default

Yes, but if you don't get a reading, try swapping the two meter leads.
 
  #20  
Old 02-25-2010, 03:51 PM
dragontrlr's Avatar
dragontrlr
dragontrlr is offline
Professional
Thread Starter
Join Date: Feb 2010
Posts: 109
Likes: 0
Received 0 Likes on 0 Posts
Default

when i hook them up "backwards" i get around 1.5-1.75, if i turn the meter to 200v and hook it up i get around 55-77v sometimes a jump around 90.(so my meter may be going bad) i am going to scream if these idiots sold me a bad coil!!.
 


Quick Reply: spark weak and charging issues???



All times are GMT -4. The time now is 11:21 PM.