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tranny guage question

Discussion in 'Truck & Equipment Repair' started by PTTP08, Dec 14, 2013.

  1. PTTP08

    PTTP08 Senior Member
    from mn
    Messages: 183

    I have a 98 gmc 3/4 ton. I added a extra 2quart pan and a gauge on the pillar. But while I am plowing it will jump up to 240 and sit there for a second and jump back down to 160. it seems real erratic. After I'm done plowing it calms down and sits around the normal 160. faulty gauge? pan slosh from the fluid? bad ground? open to idea's

    thanks