nathan09 Posted December 24, 2011 Report Share Posted December 24, 2011 Ok I cleaned up some wires last night under the hood (grounds, power wire, etc.), added some more runs, and installed an Optima YellowTop, and I somehow caused a huge issue. The connections are all the same underneath the hood. What happens now is that my fans (electric) are both stuck on high and my temp gauge is stuck at zero. I feel these issues are related. The gauge still works, as it moves when I start the car. The wires all seem good and connections are solid. I replaced the coolant temperature sensor with a new one.... no effect. I disconnected the positive on the battery and grounded it out in order to reset all of the electrical systems... nothing. I disconnected the PCM in order to reset everything... nothing. I have no idea what to do now. The car also has sporadic voltage and it will not start due to low voltage for some reason. Maybe something is shorted? I check as many fuses as I could and saw no blown ones. And I also do not know how the battery is draining so quickly as to no allow the car to start. It will be floating at 12.8V or so, and I will start it and then shut if off and it will all of the sudden be at 12.1 V and refuses to start. The battery is in fine condition. I am sure of that. I also disconnected all aftermarket wires (amps, YellowTop, etc.) in order to isolate the problem, but nothing changed. I appreciate any advice, as I cannot afford to not have my car at Christmas. Thanks guys. Quote Link to comment Share on other sites More sharing options...
JaM Customs aka mprete Posted December 24, 2011 Report Share Posted December 24, 2011 un do what you did and see if the problem is still there. Quote 2001 dodge ram 2500 quad cab 5.9L V8 my build logs... dodge build http://www.stevemeadedesigns.com/board/topic/94914-mpretes-2001-dodge-ram-2500-quad-cab-build-log/ trik build http://www.stevemeadedesigns.com/board/topic/94447-trik-build/page__p__1298547__hl__trik__fromsearch__1entry1298547 box building thread- very cool designs (PICS!!!) http://www.stevemeadedesigns.com/board/topic/95713-2d-or-3d-box-pics/page__gopid__1318152entry1318152 i am a mechanic, pm me if you have questions or anything. Link to comment Share on other sites More sharing options...
nathan09 Posted December 24, 2011 Author Report Share Posted December 24, 2011 un do what you did and see if the problem is still there. Yes. The connections are all the same underneath the hood. I also disconnected all aftermarket wires (amps, YellowTop, etc.) in order to isolate the problem, but nothing changed. Quote Link to comment Share on other sites More sharing options...
Rev. Wrath Posted December 24, 2011 Report Share Posted December 24, 2011 What kind of car? Also, did you check to make sure the alt is still charging? Quote Link to comment Share on other sites More sharing options...
14dbass Posted December 25, 2011 Report Share Posted December 25, 2011 When you did the big 3 did you leave the factory wires? Some cars the stock power wire from the alternator goes to the fuse block and runs the electrical and they will not work if you just put a 1/0 on and did not connect the factory wire as well. Also make sure your grounds are all good. Quote Suburban Build Log "So much money and time spent making copper winding move up and down a magnetic pole" DC Audio Eclipse Link to comment Share on other sites More sharing options...
503Innovation Posted December 25, 2011 Report Share Posted December 25, 2011 (edited) Edited January 5, 2012 by 503Innovation Quote http://www.liveleak.com/view?i=a98_1321735791 Link to comment Share on other sites More sharing options...
95legwagon Posted December 25, 2011 Report Share Posted December 25, 2011 i say list EXACTLY what you did step by step just to make sure you did it 100% correct. not doubting your abilities just trying to help Quote i think there real i was looking through that guys stuff he sells and it looks like he finds stuff at auctions and just sells it Yea, it looks like someone got the mids about a month ago....shit. If I had a whole Hertz front stage my ears would jizz all over my cheeks. / LOL My Low Budget Build: Green 1995 Subaru Legacy wagon 147k- $1K headunit- pioneer premier deh-p650-$25 4 Lead acid batts. 1 up front and 3 in back- vented outside.- $50 4 vvme L11 10"s <- $30 shipped a piece 6 cu. ft box (after displacment) tuned to 32ish hz with 10 inch sonotube. -about $50 all together maybe a lil more 2 aspm 1300 strapped Selenium 6"s in the front doors on headunit power- for now -$20 quantum tweets in door-for now -$10 boston acoustic 5 1/4 in rear doors- for now-Free big 3 1/0 and 4awg throughout. roof sound deadened (not peel n seal ftw)-free on 80 amp alt (bench tested to put out 100 amps faithfully) <--?-$10 for test about $430 for everything<----Not bad at all still gotta add 3 way crossover, amp for front and rear door speakers and maybe eq Link to comment Share on other sites More sharing options...
MIKE-2U Posted December 25, 2011 Report Share Posted December 25, 2011 check fuses for the gauge. Quote 2006 Jeep Grand Cherokee LaredoPioneer AVH- 3200DVD2/0 Flex-A-Prene Welding Cable (2) Fully Loaded Fi Sp4's dual 1-------> My YouTube Channel <------- Needs more power those woofers will laugh at that turd Link to comment Share on other sites More sharing options...
snafu Posted December 25, 2011 Report Share Posted December 25, 2011 Well, you didn't give us a whole lot of info to go off of. Did you drill any holes in the frame, chassis, or body? If so, did you possibly damage a wiring harness in the process? Many late model vehicles have harnesses tucked in all sorts of crannies. Did you run any self-tapping screws into the frame, chassis, or body? If so, is it possible that one has come in contact with a harness on the other side? Did you mount anything? Did you accidentally pinch or crimp a harness in the process? Keep in mind that every time you connect the battery, you are supplying whatever problem that you are looking for with a seemingly unlimited amount of current. If you have a short, at some point in time you will have a much larger problem than you have presently. If you have access to a clamp type DC ammeter, this would be an excellent time to put it to work. Place it around the positive cable and temporarily re-connect the negative. Any reading in excess of one amp is cause for concern. From the sounds of things, you have a significantly larger problem. As for the gauge and fans, I would agree that those problems would seem to be inter-related. Without having access to a schematic of your vehicle's wiring harness, about the only thing they could have in common would be a ground connection. The gauge is likely fine, so I'm speaking of the sending unit. If it has a single wire, then it is sourcing ground through the block or intake manifold, depending on it's location. Sending unit connected to block, block to battery (-), etc. If it has two wires, then one of them is likely connected to ground and the other to the gauge (whether directly or through the vehicle ECU). If that is the case, it is possible that the sending unit and fan relays share a common ground. If they were tied together, but not grounded, each would attempt to source ground through the other. You say you moved and changed stuff. Could you have accidentally disconnected their ground and forgot to re-connect it? Depending on the wiring of the fan relays, having them not grounded, could cause the fans to operate in one speed but not the other. Whatever you do, don't assume the problem will fix itself. Good luck, and report back. Quote Tony Candela - SMD Sales & Marketing Email me at [email protected] to learn about becoming an SMD Partner! Link to comment Share on other sites More sharing options...
ktraughb Posted December 25, 2011 Report Share Posted December 25, 2011 thats a good answer with a lot of possibilities above. ive pinched the tiniest of wires in a car before, only to find that it required about six hours to trace it down, and it literally controlled way more than i thought possible. new cars can be kinda strange. Quote Link to comment Share on other sites More sharing options...
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