My 94 GMC K2500 Suburban the speedo is acting up . Its wont work right , or its bouncing all over the place and then sometimes it just stays on 0 mph
Anyone have any ideas on where to start chasing this down ?
Thanks Brian
My 94 GMC K2500 Suburban the speedo is acting up . Its wont work right , or its bouncing all over the place and then sometimes it just stays on 0 mph
Anyone have any ideas on where to start chasing this down ?
Thanks Brian
1994 GMC 2500 6.5LTD 4wd
Marine injectors and built 4911 pump to run veggie oil
1981 Toyota 22L Diesel Pickup
Check your plug going to the sending unit on transfer case. If it is good go ahead and pull sending unit to see if it is full of filings on the bottom end.
Might check connections at VSB too. Pull glove box out and it will be a white plastic box about the size of a cigarette pack just left of the opening where the glove box was.
"The Constitution is not an instrument for the government to restrain the people, it is an instrument for the people to restrain the government."
-Patrick Henry
A5150nut
2006 K3500 D/A
94 6.5 4x4 5spd Sold
If it is cable driven remove the cable from the back of the speedometer. Put some wheel bearing grease on the tip of your finger and put it on the cable behind the speedometer and put it back on to the speedometer snug. If the cable is loose at the back of the speedometer it causes the needle to jump around. If it is electric check for a bad ground or bad sending unit.
Good luck
John
*2006 Chevy, 3500, 4X4, DRW, (LBZ) D/A, CC, LT, 252K Miles, 19.5" Wheels, Mag Hytec Transmission Pan and Differential Cover, SS Grill Guard, Racor 2 micron aux fuel filter, 100 Gallon Aux Fuel Tank, using Edge Evolution, Predator Diablosport, Kennedy ECM tune, Fitch Fuel Catalyst.
*2006 Four Winds, Dutchman, 36', RV, D/A, 5500 Kodiak.
*1993 Harley Davidson, Turbo charged, Springer Softail.
*2007 Pontiac Solstice.
*2005 Jeep, Liberty, CRD (diesel).
*Full-timing in USA, see America first.
BUY AMERICAN or CANADIAN, NOTHING from CHINA .
ok thanks ill give that stuff a try this weekend ....
1994 GMC 2500 6.5LTD 4wd
Marine injectors and built 4911 pump to run veggie oil
1981 Toyota 22L Diesel Pickup
Sounds like speed sensor, wiring, or VSSB/DRAC Module behind glove box near the PCM.
If you need a new VSSB you can get one at www.uniquediesel.com/drac
Thanks,
John
1982 C10 SCSWB 6.5TD, mods too extensive to list. (13.69 1/4 mile @94.6 MPH) RACE TRUCK
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