Firing Issue

[h8tobl8]

Hi Guys,

 

I have a 1997 Z71 that will not start. I only have one cylinder firing. I can't remember the order at the time, but it's the second cylinder from the front on the driver's side. No other cylinder is showing fire with the tester. Checked the firing from the coil to the distributor, and it seems intermitent. I just changed the cap, rotor, plugs, and wires about a month ago because of a similar issue. It fixed the problem at the time. The truck was running great the other night, no symtoms or nothing. Shut it off at the store, I came out and it would not start. Just spins over with an occasional pop from the throttle body. Could it be the distributor cap again, coil, or does this truck have a crank position sensor?

 

Thanks,

Casey

[threearmsinjune]

Hi Guys,

 

I have a 1997 Z71 that will not start. I only have one cylinder firing. I can't remember the order at the time, but it's the second cylinder from the front on the driver's side. No other cylinder is showing fire with the tester. Checked the firing from the coil to the distributor, and it seems intermitent. I just changed the cap, rotor, plugs, and wires about a month ago because of a similar issue. It fixed the problem at the time. The truck was running great the other night, no symtoms or nothing. Shut it off at the store, I came out and it would not start. Just spins over with an occasional pop from the throttle body. Could it be the distributor cap again, coil, or does this truck have a crank position sensor?

 

Thanks,

Casey

 

 

Check for trouble codes.........1997 should have a camshaft position sensor located in the distributor housing. one of its purposes is to monitor for misfires. First test should be that the battery is fully charged. Next,between the coil and cap. (Testers can be had for roughly $10 at the local parts store. One with an adjustable gap would be great.) Next each plug wire. If still no spark haynes manuals (#24065 page 5-6) give a pretty good description of how to check the ignition.