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Cox Engine of The Month
I need your help guys!!!!
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I need your help guys!!!!
We have such a vast knowledge base in this group and a lot of very smart people. How’s that for a set up? I could really use your help.
I have a 1998 Dodge Ram 2500 “ol Blue” and she’s having a headlight problem. A little history, years ago, I had the day time running light module go out. So I disconnected it and have run without DTRL’s for about ten years, I don’t think this is part of the problem but thought I’d mention it. Right now, the problem is, I feel like the low beams are dimmer than normal and when on high beam they will just turn off. The lights will come back on if I switch back to low beams.
If I turn off the engine, the lights don’t seem to dim anymore. And if I start the engine , it doesn’t seem to get brighter.
Any ideas? Anyone ever have this problem ?
I have a 1998 Dodge Ram 2500 “ol Blue” and she’s having a headlight problem. A little history, years ago, I had the day time running light module go out. So I disconnected it and have run without DTRL’s for about ten years, I don’t think this is part of the problem but thought I’d mention it. Right now, the problem is, I feel like the low beams are dimmer than normal and when on high beam they will just turn off. The lights will come back on if I switch back to low beams.
If I turn off the engine, the lights don’t seem to dim anymore. And if I start the engine , it doesn’t seem to get brighter.
Any ideas? Anyone ever have this problem ?
duke.johnson- Diamond Member
- Posts : 1734
Join date : 2012-11-05
Age : 52
Location : Rochester, Washington
Re: I need your help guys!!!!
Grounds. Clean them up. Sand down to bare metal.
Cribbs74- Moderator
-
Posts : 11895
Join date : 2011-10-24
Age : 50
Location : Tuttle, OK
Re: I need your help guys!!!!
Beat me to it lolCribbs74 wrote:Grounds. Clean them up. Sand down to bare metal.
But yup as Cribbs stated, check your grounds, engine to chassis, chassis to body negative batt terminal (both ends), grounds under dash and anything related and clean. repair or replace any that look questionable and for those ground wires attached to the firewall, make sure they are making metal to metal contact i've seen more than my fair share of firewall grounds just slapped on by the factory without removing the paint. About 98% of all electrical problems in automotive and aircraft DC systems can be attributed to loose, dirty/corroded grounds. If it looks suspicious, check it out. Also if your truck has those un-insolated flat shunt ground cables and they look greenish replace them. (Bandit)
TDbandit- Platinum Member
- Posts : 897
Join date : 2014-12-01
Age : 52
Location : Riverdale Georgia
Re: I need your help guys!!!!
Thanks. I’ll start checking
duke.johnson- Diamond Member
- Posts : 1734
Join date : 2012-11-05
Age : 52
Location : Rochester, Washington
Re: I need your help guys!!!!
Coming from another that had a 1995 Ram 1500 Ol' Blue here, it had a similar problem with the DRL module. If memory serves me correct, if we unplugged the module, all was good. But here DRL is mandatory in Manitoba for certain years an newer, so we opted to get a used DRL module and used it till we sold her. So, I would personally try a new/used module and see what happens. Just my .02
NEW222- Top Poster
- Posts : 3892
Join date : 2011-08-13
Age : 45
Location : oakbank, mb
Re: I need your help guys!!!!
In addition to ground connections, it would be good to also check the battery cables and terminals for corrosion. I once had a corroded battery cable (forgot which one) in my T-bird, it would cause all kinds of erratic electrical gremlins. Both ends of the cable looked fine but it was almost completely broken inside the insulation, about an inch from the battery end.
Another time, on my Saab 9000, the surface between battery pole and cable terminal was corroded. Everything looked fine on the surface and even after disassembly it took a closer look inside the terminal to figure it out.
Good luck, and let us know how it turns out.
Another time, on my Saab 9000, the surface between battery pole and cable terminal was corroded. Everything looked fine on the surface and even after disassembly it took a closer look inside the terminal to figure it out.
Good luck, and let us know how it turns out.
KariFS- Diamond Member
- Posts : 2000
Join date : 2014-10-10
Age : 52
Re: I need your help guys!!!!
I think I remember reading in the Rock Auto monthly newsletter to check the simple things first. Did you verify that the high beam filaments are not just burnt out? There was a "short" story where the guy ripped apart his wiring loom looking for a short, only to find the bulb was toast. The others advise about checking grounds is next in priority. Next, if haven't already done so is to search and find a Dodge Truck forum or Mopar fan forum, and search their threads for similar problems. I know I found "Fred's TDI page" a valuable source of information about Vw Jetta Diesels and their quirks...and their problems with grounds. Like the one under, I say under the battery which can lead to very frustrating glitches if not kept clean of corrosion....under the battery sheesh!
Here try this: http://www.ramforumz.com/showthread.php?t=232644
Here try this: http://www.ramforumz.com/showthread.php?t=232644
Last edited by Marleysky on Mon Oct 09, 2017 9:35 am; edited 1 time in total
Marleysky- Top Poster
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Posts : 3618
Join date : 2014-09-28
Age : 71
Location : Grand Rapids, MI
Re: I need your help guys!!!!
What about the high, low switch itself? Seems like a place to start looking. Is the alternator putting out?
crankbndr- Top Poster
- Posts : 3062
Join date : 2011-12-10
Location : Homestead FL
Re: I need your help guys!!!!
crankbndr wrote:What about the high, low switch itself? Seems like a place to start looking. Is the alternator putting out?
Ditto!
I have had a couple vehicles with similar problems that ended up needing new switches, especially column mounted switches/handles. Good luck with it.
fit90- Diamond Member
- Posts : 1336
Join date : 2011-08-11
Location : Naples, Florida
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