[MT-2500]

Originally Posted by cramer_77

Got a truck at work that has got some problems. Heres the run down, we replaced the engine approx. 19k ago(customer ran it low on oil), replaced distributor and spark plugs approx. 10k ago, replaced cap and rotor 7k ago. Replaced distributor again 5k ago. This time in the shop we have replaced the pickup coil(out of specs), distributor cap, rotor, wires, plugs, both coolant sensors. Whats happening is truck will run extremely rough when cold, then about the time it gets warm truck will smooth right out and run like a champ. Truck ran fine after we replaced all the ignition stuff until it got up to temp, then it wanted to keep dieing. Now, its exactly opposite, runs bad cold, smooths out warm. Didn't know if anyone has ran into this before or might know somewhere to look. Took truck on a drive, got about 1/2 mile down the road and it starts bucking and running bad so i pulled over into a parking lot. Sitting there idling it kept acting like it wanted to die, and the scanner was reading no rpms. Drove it back to the shop, was never able to get above 3rd gear, and it died twice trying to get it back into the shop. Thanks in advance.

Any engine codes?
Good hot blue spark to all plugs?
How is the fuel pressure doing?