I can start and run my truck but I need to keep a slight pressure on the throttle. I plow my yard and back my truck into it's parking spot and as soon as I let off the throttle it stalls. I had the crank sensor replaced a while back and it has acted this way since shortly after that. I didn't want to start replacing sensors until I got some advice from the forum members. TIA for any help offered

 

What brand crank sensor? Do you have a scanner that can see basic data?

 

I don't know the exact brand of sensor but I am 100% sure it wasn't a Mopar sensor. I don't have a scanner.

 

I have had battery problems in the past and found that this truck acts funny if the battery isn't 100%. I bought a used battery and I have to charge it if the truck sits for a week or more so I suspect that battery is marginal at best.

 

Many folks here have trouble with non-MOPAR crank sensors. Batteries can also cause problems with these trucks as they rely on electronics. Here is what I would do in your situation. Buy a new battery, Walmart actually sells good batteries. (Reference before buying although Walmart was the top 3). See if it goes away if it doesn't you will need a scanner.

When was the last tune up done?

 

Did a complete tune up about a year ago. I only use this truck as a plow truck for my own yard. It has very few miles on it since the tune up.

 

Aluminum or copper rotor and cap?

 

Don't remember for sure

 

Aluminum will oxidize which is not good. I would replace the battery and see what happens. Have it tested at the local auto parts store

 

I think that can be a throttle position sensor or an IAC valve. Maybe clean the IAC valve and the port in the throttle body.