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'02 Dakota-What is this thing on the battery tray? #686645 05/02/10 05:02 PM 05/02/10 05:02 PM
Joined: Oct 2003 Posts: 2,344 Banana Republic FM3AAR OP top fuel
FM3AAR OP top fuel Joined: Oct 2003 Posts: 2,344 Banana Republic	I just bought my boy an '02 Dakota. I replaced the leaking Mopar battery with a maintenance free battery. While cleaning up and underneath the battery tray I saw this and wondered what it is and what does it do. Here's a couple of pictures of the top and the bottom of the battery tray. Thanks. [image]http://[/image] [image]http://[/image] “You’ll own nothing” — And “you’ll be happy about it.” K. Schwab

Re: '02 Dakota-What is this thing on the battery tray? [Re: FM3AAR] #686646 05/02/10 05:07 PM 05/02/10 05:07 PM
Joined: Feb 2008 Posts: 163 Winnipeg, MB S sreinheimer member
sreinheimer member S Joined: Feb 2008 Posts: 163 Winnipeg, MB	I think it is a battery temp sensor. Not 100% on that because some seem to have them and some don't. But i think thats what it is. 69 Dodge Charger - first full resto 05 Dodge Magnum R/T

383man [Re: FM3AAR] #686647 05/02/10 05:07 PM 05/02/10 05:07 PM
Joined: Jan 2003 Posts: 27,421 Balt. Md 3 383man Too Many Posts
383man Too Many Posts 3 Joined: Jan 2003 Posts: 27,421 Balt. Md	Battery temp sensor. Ron

Re: 383man [Re: 383man] #686648 05/02/10 05:21 PM 05/02/10 05:21 PM
Joined: Oct 2003 Posts: 2,344 Banana Republic FM3AAR OP top fuel
FM3AAR OP top fuel Joined: Oct 2003 Posts: 2,344 Banana Republic	Quote: Battery temp sensor. Ron Thanks guys. I wonder how it works? Is it looking for, a high temp or a low temp? “You’ll own nothing” — And “you’ll be happy about it.” K. Schwab

Re: 383man [Re: FM3AAR] #686649 05/02/10 05:27 PM 05/02/10 05:27 PM
Joined: Jul 2008 Posts: 75 Lakeland, FL S sixpakchallenger member
sixpakchallenger member S Joined: Jul 2008 Posts: 75 Lakeland, FL	It's a regular temp sensor. The computer use it to determine alternator output. Hot batteries charge differently than cold ones. 2007 Mustang GT Vert 2004 Ram 2500 QC 4X4 1971 Challenger Vert 5.7 Hemi Project

383man [Re: FM3AAR] #686650 05/02/10 05:28 PM 05/02/10 05:28 PM
Joined: Jan 2003 Posts: 27,421 Balt. Md 3 383man Too Many Posts
383man Too Many Posts 3 Joined: Jan 2003 Posts: 27,421 Balt. Md	Its mostly for the charging system. When its colder out the charging target voltage will go up and down in hotter temps. Say 30 degrees it may be 14.8 and at 90 degrees 13.4. Ron

Re: 383man [Re: sixpakchallenger] #686651 05/02/10 06:32 PM 05/02/10 06:32 PM
Joined: Feb 2010 Posts: 1,377 Ohio Todd pro stock
Todd pro stock Joined: Feb 2010 Posts: 1,377 Ohio	Quote: It's a regular temp sensor. The computer use it to determine alternator output. Hot batteries charge differently than cold ones.

Re: 383man [Re: Todd] #686652 05/02/10 08:18 PM 05/02/10 08:18 PM
Joined: Oct 2003 Posts: 2,344 Banana Republic FM3AAR OP top fuel
FM3AAR OP top fuel Joined: Oct 2003 Posts: 2,344 Banana Republic	OK, I understand now. Just I had never seen something like this before. Thanks for all the responses. “You’ll own nothing” — And “you’ll be happy about it.” K. Schwab

Re: 383man [Re: FM3AAR] #686653 05/02/10 10:50 PM 05/02/10 10:50 PM
Joined: Mar 2003 Posts: 18,678 Fresno, CA Jim_Lusk I Live Here
Jim_Lusk I Live Here Joined: Mar 2003 Posts: 18,678 Fresno, CA	It also sets the check engine light in a 96 Dakota. We had to dig it out of a pile when we swapped in the 96 318Mag in our 84 Ramcharger.

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