I probably did let it idle too much when I first got it back in 2000 and 2001 (first diesel) as I knew that starting was hard on them. I would often let it idle for 10 or 15 minutes or longer when I was in a store. (The truck is not a daily driver) Now, I don't let it idle as much - just a good warm up when cold or quick trips into a store. After pushing it hard on the freeway, I ALWAYS and have always let it cool for 5 or 10 minutes before I shut her down. I realize the importance of cooling the oil and turbo down before shutdown. do you think the excessive ideling of the past was hard on the turbo? or something else?
also, as a Christmas gift from myself to myself, I installed a 14 guage, 4inch exhaust and downtube. The exhaust shop told me that I would hear the turbo "whistle" a lot more. I used to hear it once in a while. I don't hear it anymore...and have not heard it in years. The turbo is as quiet as a church mouse..... also, do I have to remove the turbo from the truck??? or can we inspect it on the vehicle? thank you!
Nah, you dont have to remove it at all. Just undo the rubber/plastic air tube that connects the air box to the turbo and take a flashlight and take a look see. Idleing isnt that much of a prob and wouldnt do anything to the turbo. I just wanted to know because it leads to wet-stacking and that will cause performace problems in the cylinder walls. Idleing the psd at normal islde, which is about 680rpms, isnt good for extended periods. You can let it idle all day long at 1200-1300rpms. The high idle keeps the engine warm enough to burn all the fuel in the cylinders. Thus preventing wet-stacking. all wetstacking is, is unburned fuel left over causing deposits. and after a while it will cause probs. Invest in an apcm (aic) from ford, its worth its weight in gold. I got mine off ebay. The stealer may want anywhere between $400-$700 for it. Ebay usually for about $250. If you happen to find one really chep like I did, $25, because it didnt have the wiring harness, then get it because i have the part numbers for a replacement harness. For will tell you there is no replacement harness. Dont believe them. btw, the harness was $50. apmc= Auxiliary Powertrain Control Module also known as an aic= Auxillary idle controller btw, the idling thing doesnt just pertain to the PSD, all diesels need them, big rigs, ambulances, service vehicles etc... already have them form the factory.