92 S10 2.8 5 soeed motor cuts out

[RingMaster4x4]

I have a 1992 S10 2WD 2.8 5 speed with 300K on it and the turck cuts out like it has a complete power loss. Even the radio resets. I does not do it when I first start driving it in the AM but after it is good and warm when I hit a bump in the road it just cuts out for a sec.

Like it has a dead short I have looked every there for a wire with the insulation rubbed off but nothing. I was not having this problem untill about 2 weeks after I replace what looked like the OEM sprak plugs in it.

Then it did it once while drving down the Highway with no bump. Then about 2 or 3 days later it did a time or 2. it has slowly been getting worse stopped driving it till I can get it figured out. Any help would be great.

 

[az_762_nato]

hows your battery cables and terminals at each end?

 

[RingMaster4x4]

Well the cables look to have been replaced recently and I have checked both ends and the pos. on the starter looks good the neg. was not tight on the block but I fixed that when this first started.

 

[70BlazerX2]

S-10's are bad for the wire harness that lays above the brake booster to rub the top of the booster and short out. I would check that 1st...and does your check engine light come on with key on engine off? If it is not on...you need a ecm...I do have one for a 2.8 5speed if you need one..$25 shipped.

And check all the fuses in the fuse box,one may be loose..