my 87 gl 4wd wagon seems to cut out and loose power abouve about 3300rpm. I just gave it a tune up (plugs, wires, cap,rotor)- still doing it. any advice?

change fuel and air filters?

Is it carbed, or F.I.? Check all of your vac lines.

I'd suspect the coil. Before replacing the coil, make sure that the coil's tower is clean.

 

Try running the car in the dark, to see if there's any high-voltage arcing.

Since it's an 87 4wd it no doubt is a carbed car.

 

Classic symptom of a semiplugged fuel filter

 

The one under the car back by the fuel pump.

(Primary fuel filter, the under hood unit is a vapor separator)

 

The one by the fuel pump is often neglected.

 

Hope this helps

Does the '87 GL SPFI 2WD have a fuel filter by the pump, too? My wife is having similar problems.

negative Jimbo

 

just the one by the master cylinder.

 

and a sock on the tank pickup

 

Maybe post a new thread detailing the situ