2000 Manual acting very strange

jtgf250 · Dec 23, 2016

Helping a friend work on a 2000 manual drive. Truck has close to 400K

Truck was acting like it was loosing power and would cut off. Would fire right back up and sit at around 1100 RPM and have a very touchy throttle.

After visual inspection found oil in ICP so replaced with OEM. Also found tin nut off IPR and solenoid slid back so replaced with OEM. Replaced UVCH and pigtails due to a couple bad wires.

Put AE on the truck and fire up. Reads 800 ICP at 10-12% ICP. Runs a few minutes and shuts off. Start back up and is idling at 1100 RPM with 380 ICP and 64% IPR. Very touchy throttle and shuts off.

Also with the ICP unplugged it will Not start. One injector does read bad with meter and buzz test.

So no change. Getting stumped on this one. Anybody have any ideas?

ju015dd · Dec 23, 2016

Sounds like an ipr issue to me. I would try and clean it first, or swap in a known working one to find out.

mandkole · Dec 23, 2016

Agree on the IPR as a possibility--sometimes you just have to swap them. When it dies, is the reservoir full? You may want to verify that you have good lube oil pressure too.