1986 fiero

[pontiac_kid98]

ok i bought this thing for 500 so i cant complain about putting work into it but heres my problem. the car runs fine when started and even after warming up, but after about a half hour of driving it starts missing im geussing its the plugs and wires but before i go and replace them like a dumb *** i wanted to see if it could be anything else, due to the fact iv herd its like pulling teeth to replace them on a V6 model.

help me out thanks

[underpressure02]

Its not hard at all to change them. Just stand in the trunk and kind of huge the engine. Kind of hard to describe but nothing hard about it.

[driftingrx5.7]

it does sound like you plug wires are worn and not holding the right amount of spark. i will email my friend who works on these cars and see what he says

[teh DIRT]

doesn't sound like plug wires to me. Sounds like you have an issue that is heat related. Crank or cam sensor is going bad is my bet. Warms up, the coil in the sensor expands and causes an issue.