Shop insists there is no problem and I've just been really lucky getting bad chassis... My nickname used to be "the wrench" and I was told by a coworker to move to Vegas and be a cooler so it's possible?
Chassis #t right now and they are all working..
2007 volvo vnl.
As far as the electrical cord... It's a phillips... And this was happening before I switched the chords as well...
I'm starting to think it may have actually just been a fluke? I'm kind of trapped by the fact that I can't go out for a run and have a stupid "breakdown" for something like this.... Don't want to run any more days without brake lights..... Might just have to bobtail for a hundred miles and try again and see?
Need assistance.. Electrical issues 2007 Volvo VNL
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by TCF, Apr 18, 2023.
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You are talking about one of these right?
So far... When I use it... I'm fine..
Used it several times to test the tractor so far..Attached Files:
Rideandrepair Thanks this. -
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It is up to you to run it or not.. It could be a bad trailer if it is working now.. But i think u have a wire loose somewhere or bad ground... When replacing a cord to a plug, it is easy to not tighten the screws all the way or to accidently get a wire loose when putting the rubber boot back on... Just to clarify you checked to make sure all the screws and wires are sitting tight on the back on the truck side plug ? if any of them are loose it will cause flickering or work intermittenly especially the ground wire which will be the thick white one at the top of your plug. Red is the brake lights
Rideandrepair and TCF Thank this. -
You need a test light to test individual wires. You can buy one at most truckstops. I have a simple one like the picture below and i also have one that has a voltage readout on it. What you do is take the clamp and clamp it to a piece of metal that is conductive (not aluminum).. If you are working around the truck and trailer plug. A bolt on the shocks or fuel tank strap bolts will provide the ground you need.. When u have a good ground with that clamp, then u touch the end of the metal probe to the wires and the light should come on if you have power... Now the voltage readout one is better because it will tell you what volts you have coming thru that wire... If you already tested the plug with the 7way tester then u really dont need to do this because you are just doing the same thing....
Maybe the problem is on the trailer... If it is working intermittenly.. But i would recommend getting a phillips screwdriver and making sure all the wires are screwed in nice and tight to the back of the plug on the truck and that there is no corrosion back there... The back of those plugs are always a source of electrical gremlins . i have replaced a lot of them
Rideandrepair, TCF and gentleroger Thank this.
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