There are 3 coils on all 3100 gm
there ain't one eof those u have coil packs and no distributor
THE FIRING ORDER FOR A 2.8 V6 88 CAVALIER IS 1,2,3,4,5,6, THE COIL PACKS ARE 1-4 6-3 2-5
If its a third gen. z24 you should try to replace the coil pack housing on it. I had the same misfiring problem on my 97 z24. I replaced the plugs, plug boots, coil packs, camshaft position sensor, and crankshaft position sensor. After I replaced the coil pack housing, it stopped the misfire and made the engine run like it was supposed to.
4...under the coil cover
coil wireing order on 87 d21 z24 motor truck
at the bottom of the block, under the coil pack
Yes. They are the same from 1987 until 1990
No...The stock coil-overs won't allow it.
The stock horsepower is 140 for the 3.1L engine.
Yes they are located front of block Remove air cleaner and fan and they become easy to reach
Behind the coil pack in the front lower center part of the engine.
well the 90 3.1 is the same as the 2.8 where the coil pack module is located underneath the front exhaust manifold to replace the module u have to take out all 3 coils leave the park plug wires connected and then disconnect the wires to the module and take out a couple of bolts and just replace it the way it was