1997 Dodge 1500 8-5.2L - Communication Loss
Posted: Wed Feb 13, 2019 3:47 pm
A recent arrival at the shop is a 1997 Dodge 1500, 2 X 4, 5.2 L Gas 5 spd standard. Cranks, but no start. fuel pressure 50 psi. Customer changed plugs and wires. Claims it ran fine for several weeks then dropped dead one day.
I checked wires and fuel pressure so far. Connected scanner to see cam/crank pulse and while KOEO scanner accesses data fine, when key moved to start position, communication is lost when key return to "on" position communication returns. Checked grounds at battery and repaired all three from battery to block, fender and frame. Checked ground from block to frame (drivers side) - looks fine but majority is coated with plastic.
Cap & rotor are in need of replacement. Coil is firing during first revolution, but nothing after that. I speculate that it has to do with communication loss but until I can identify the problem there I can't prove it.
Going to try remote start button to see if there is a connection / issue with ignition switch.
If anyone has experienced something like this in the past, I would appreciate the input.
Thanks
I checked wires and fuel pressure so far. Connected scanner to see cam/crank pulse and while KOEO scanner accesses data fine, when key moved to start position, communication is lost when key return to "on" position communication returns. Checked grounds at battery and repaired all three from battery to block, fender and frame. Checked ground from block to frame (drivers side) - looks fine but majority is coated with plastic.
Cap & rotor are in need of replacement. Coil is firing during first revolution, but nothing after that. I speculate that it has to do with communication loss but until I can identify the problem there I can't prove it.
Going to try remote start button to see if there is a connection / issue with ignition switch.
If anyone has experienced something like this in the past, I would appreciate the input.
Thanks