weak cranking
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Freshman User
Joined: Oct 2004
Posts: 31
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weak cranking
Hi all
i have a quick question for the group
when my truck is cold, when starting the truck, the starter cranks real weak like a dead battery.
1 battery is brand new, the other is about 1 year old. i did a load test on both batteries and they are ok
when the truck is hot, as in if you drive it for 20 minutes, shut it off, then restart it starts normal, or the starter cranks normal
could this be the sighn of a cps going bad? no check eng lights on
thanks!!!!
i have a quick question for the group
when my truck is cold, when starting the truck, the starter cranks real weak like a dead battery.
1 battery is brand new, the other is about 1 year old. i did a load test on both batteries and they are ok
when the truck is hot, as in if you drive it for 20 minutes, shut it off, then restart it starts normal, or the starter cranks normal
could this be the sighn of a cps going bad? no check eng lights on
thanks!!!!
Cargo Master
Joined: Jun 2003
Posts: 3,292
Likes: 6
From: Ardenvoir, Washington
You might also check your older battery with a hydrometer.. If you don't have one, they are pretty reasonable in price.. Got one from Napa a couple of weeks ago for $18. It might show one cell is bad..
Last edited by clintbonnie; Feb 18, 2007 at 08:16 PM.
Infidel
Joined: Aug 2003
Posts: 1,115
Likes: 2
From: Elkhorn WI
You could have brand new batteries and starter..but if the connection between the two arent good then youve got starting issues. Clean the battery posts and the cable ends and try again.
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Brett Foote
Senior User
Joined: Sep 2006
Posts: 351
Likes: 1
From: In the Georgia Pines
i'm having the same problem. i changed my oil using delvac 15w-40 dino and it's been in the 20's here in the mornings. it doesnt start on the first try. it always catches on the second start. if i plug her in for 2 to 3 hours it starts no problem.
so i started thinking that the oil is cold and thick and the starter is having problems turning it over. so i tried a few different things to see if i could get her to start on the first try. the last tank of diesel i got i didnt put in any diesel kleen... i wonder if that could be the issue... cold mornings, thick oil, and crappy winter blend diesel.
i turned the ignition on and let it sit there for 30 seconds and listened for the fuel pump to shut off and the GP to heat up. no go. still took 2 tries to get her fired up.
when she starts she runs fine. no wump wump noises. after she's been out on the road for 10 minutes or so she's fine, plenty of power.
now i have 100k on my truck and everything is stock except the 6637 filter i did last month.
it's going to be warming up soon down here in GA so i'm probably not going to swap out oil for 5w-40 syn. i guess i'll do that next winter.
in the mean time i went and filled up with 16oz of DK this afternoon. it's going to be a cold one again tomorrow. so i'll guess we'll find out if its the diesel fuel or not.
thanks
-mike
so i started thinking that the oil is cold and thick and the starter is having problems turning it over. so i tried a few different things to see if i could get her to start on the first try. the last tank of diesel i got i didnt put in any diesel kleen... i wonder if that could be the issue... cold mornings, thick oil, and crappy winter blend diesel.
i turned the ignition on and let it sit there for 30 seconds and listened for the fuel pump to shut off and the GP to heat up. no go. still took 2 tries to get her fired up.
when she starts she runs fine. no wump wump noises. after she's been out on the road for 10 minutes or so she's fine, plenty of power.
now i have 100k on my truck and everything is stock except the 6637 filter i did last month.
it's going to be warming up soon down here in GA so i'm probably not going to swap out oil for 5w-40 syn. i guess i'll do that next winter.
in the mean time i went and filled up with 16oz of DK this afternoon. it's going to be a cold one again tomorrow. so i'll guess we'll find out if its the diesel fuel or not.
thanks
-mike
Senior User
Joined: Sep 2006
Posts: 351
Likes: 1
From: In the Georgia Pines
well to continue with my experiment this morning... it was 28 out and the truck was not plugged in. with 16oz DK it started up on the first pull. it cranked slow, but caught after 3 seconds and ran fine.
so tomorrow i'll run the heater for 3 hours and i'm sure everything will be fine.
i'm thinking that it's time to swap out the batteries again.
thanks
-mike
so tomorrow i'll run the heater for 3 hours and i'm sure everything will be fine.
i'm thinking that it's time to swap out the batteries again.
thanks
-mike
Of the next Riffraff East
Joined: Oct 2004
Posts: 8,679
Likes: 2
From: Concord NC
Originally Posted by mjlewis
well.........................i'm thinking that it's time to swap out the batteries again...mike
Senior User
Joined: Sep 2006
Posts: 351
Likes: 1
From: In the Georgia Pines
yeah, i found that out after i joined this site... if i only had known then what i know now. but i think it's a combination of the cold weather, weaker 2nd battery, crappy winter blend diesel and the new 15w-40 delvac.
now i'm thinking about switching over to 5w-40 syn. but when it's warmed it, it runs great.
now i'm thinking about switching over to 5w-40 syn. but when it's warmed it, it runs great.
Of the next Riffraff East
Joined: Oct 2004
Posts: 8,679
Likes: 2
From: Concord NC
Originally Posted by mjlewis
yeah, i found that out after i joined this site... if i only had known then what i know now. but i think it's a combination of the cold weather, weaker 2nd battery, crappy winter blend diesel and the new 15w-40 delvac.
now i'm thinking about switching over to 5w-40 syn. but when it's warmed it, it runs great.
now i'm thinking about switching over to 5w-40 syn. but when it's warmed it, it runs great.