electrical issue - Competition Diesel.Com

draught · 11-06-2016, 01:15 PM

I have a 95 2500 man 5 sp has an intermittent electrical issue the tach will stop working so does the speedometer and it stops charging,but every thing else works. Also if you turn the engine off and restart it they work again for about 5 min. Any ideas?

jkretzer · 11-06-2016, 02:01 PM

Check for bare wires on the engine harness for 1, check the wires below the steering wheel. Years ago mine would act similar, founf a loose wire on the plug below the wheel. MAybe someone else has more insight

95cummins5.9 · 11-06-2016, 02:15 PM

The gap between the sensor and the crank should be checked. A credit card works good for that.

wildbill144 · 11-06-2016, 04:54 PM

X2 on the sensor, had a similar prob with the 98, sensor pick up was sitting at a bit of an angle, regaped it and everything worked right, just remember to use a brass or non metallic feeler gauge as it is magnetic and a regular steel one will ruin it ..

GAmes · 11-07-2016, 07:34 AM

The speedo does not take any readings from the ESS so it is doubtful the gap is the problem. The common link between the tach and the speedo is a ground wire.

4x4dually · 11-07-2016, 07:56 AM

The sensor would have nothing to do with it not charging either. Sounds like a bare wire to me that is shoring to ground causing the signals to drop out.

GAmes · 11-07-2016, 08:03 AM

Quote:

Originally Posted by 4x4dually

The sensor would have nothing to do with it not charging either.

Actually not true. The PCM needs an engine speed input to activate the voltage regulator, so the ESS does play a role in the charging circuit.

4x4dually · 11-07-2016, 08:05 AM

Quote:

Originally Posted by GAmes

Actually not true. The PCM needs an engine speed input to activate the voltage regulator, so the ESS does play a role in the charging circuit.

Duely noted. Thanks for the correction.

11-06-2016, 01:15 PM	#1
draught Name: draught Title: Rookie Status: Not Here Join Date: May 2008 Location: gloucester va Member`s Gallery Posts: 20	electrical issue I have a 95 2500 man 5 sp has an intermittent electrical issue the tach will stop working so does the speedometer and it stops charging,but every thing else works. Also if you turn the engine off and restart it they work again for about 5 min. Any ideas?

11-06-2016, 02:01 PM	#2
jkretzer Name: jkretzer Title: MegaCrank Status: Not Here Join Date: Jul 2006 Location: hunting, fishing or at work Member`s Gallery Posts: 1,444	Check for bare wires on the engine harness for 1, check the wires below the steering wheel. Years ago mine would act similar, founf a loose wire on the plug below the wheel. MAybe someone else has more insight __________________ 98 12v, DTT auto, ADT Motor, Mid-Atlantic Diesel Tuning and Twins. 62/13/s400 56 chevy shortbed restomod, 2wd, cummins 4bt, nv4500.

11-06-2016, 04:54 PM	#4
wildbill144 Name: wildbill144 Title: Green Behind the Ears Status: Not Here Join Date: Apr 2016 Location: Lake's region NH Member`s Gallery Posts: 91	X2 on the sensor, had a similar prob with the 98, sensor pick up was sitting at a bit of an angle, regaped it and everything worked right, just remember to use a brass or non metallic feeler gauge as it is magnetic and a regular steel one will ruin it .. __________________ 98 12v tow pig plow truck. 97cclb 7"lift,DOR full kit, long arm's etc.37 toyo MT,ARB's F/R,4.56 35 spl axels. Engine trans being built

11-07-2016, 07:34 AM	#5
GAmes Name: GAmes Title: Retired Apache pilot Status: Not Here Join Date: Jun 2012 Location: Killeen, TX Member`s Gallery Posts: 271	The speedo does not take any readings from the ESS so it is doubtful the gap is the problem. The common link between the tach and the speedo is a ground wire. __________________ '97 Dodge 3500, G56, slightly bombed, A million+ miles, started 2nd million on 8/24/13 Now past 1.3 million and going strong.

11-07-2016, 07:56 AM	#6
4x4dually Name: 4x4dually Title: Moderator Status: Not Here Join Date: Jan 2007 Location: Stillwater, OK Member`s Gallery Posts: 31,812	The sensor would have nothing to do with it not charging either. Sounds like a bare wire to me that is shoring to ground causing the signals to drop out. __________________ Jory 2009 4x4 3500 MCLB "There are people far less intelligent than you making a living doing this stuff." - Jeff Mumau

11-06-2016, 02:15 PM	#3
95cummins5.9 Name: 95cummins5.9 Title: Old man *** gossiper Status: Not Here Join Date: Jun 2012 Location: U.S.A Member`s Gallery Posts:** 4,720	The gap between the sensor and the crank should be checked. A credit card works good for that.