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  1. Engine miss plzzz help

    Drivetrain Tech Center
    Hey I have a 1994 ZJ V8 and I have a surging miss under a load. I have changed the cap, rotor, cam sensor, crank sensor, plugs, wires, fuel filter, swapped map sensor out of buddys working zj and the fuel pressure is dead on to my manual... I'm stumped and low on funds to blow on more sensors. I...
  2. Tranny downshifts while in OD at approx 70 mph

    Drivetrain Tech Center
    Recently acquired a 2004 Overland (4.7L HO, of course, and about 110,000 mi) and I think I either have a slight occasional miss or maybe a tranny issue. Runnung 87 octane and things seem to be doing decent around town with an occasional downshift when slightly unexpected (even with the lightest...
  3. I gots a problem

    Drivetrain Tech Center
    I have a 1996 Jeep grand cherokee limited with the 4.0 I6, when i got it it had a miss and smoked a little black and got crappy MPG's, so I put the scanner on it and it said code p0171 bank 1 lean. I was told it was first a coolant sensor so changed that made no difference and worse it still...
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