Solenoid replaced 4 months ago. Now need another. What do you think the problem is.

Bad luck - should have lasted longer. Get another one and make sure it is warrantied.

Chanches are it is probably the fan. Anything over 15 miles an hour the fan is no longer needed. I would get a cheap hydrometer and make sure your antifreeze is still good.

I have no idea what they are trying to pull but all PCM's are rebuilds, Jag dealers are as well.

try tapping on the starter housing while somebody is in the car. have them try to start the car while tapping on it if it starts replace the starter. who may have a dead spot in the whindings. good luck steve

you may just need to replace the "starter Solenoid"

It sounds like the ignition switch again, thats the only source for the starter solenoid to power up. I'd disconnect the power to the starter solenoid (ignintion input small wires, not the battery cables). Jumper the battery again, check for power on the solenoid for the ignition feed, if it has power then yes the ignition switch is bypassed somehow. I've seen issues with the back side of the connector going to the ignition switch where the wires are bare from being flexed, the insulation breaks and wires touch each other. Carefully check the condition of the wires going to the ignition switch, if good replace ignition switch again.

need to change the heat range of ur themostat

what i think the solenoid you says are not solenoid, it is just high and low pressure switch. just by pass the switch to see the switch working or not.

Starter solenoid most likely. Check the connections on the solenoid and the starter itself.

No this is not a complete trans failure this trans only uses those two solenoids so if it comes down to it replace those two which are in the pan. If all three codes came at the same time try running a ground strap from the frame to the trans, those codes do often occur with bad grounds!