2001 cummins 4x4 6 speed lacks power
#1
2001 cummins 4x4 6 speed lacks power
A while back I was pulling a hill and heard a pop and since then truck has lacked a little power and fuel mileage went down to 13. Just replace injector pump and lift pump, lift pump is block mounted FASS unit. When you drive it you can fill the turbo working but on the scan tool the MAP sensor will not move off of 14 ever. Is there a way to hook up a pressure gauge to manually check boost pressure before replacing MAP sensor? Or is there something else that could be the problem.
Thanks,
Thanks,
#2
You heard a pop? If it came from the engine compartment and not the exhaust id start checking your boots from your turbo all the way to the intake horn. You may have blown a boot and that's where the pop came from and that could be causing the low boost. Easiest way. To check is to first look for a visable hold or damaged boot, if you can't seem to find anything you can take the boot and tube loose from the turbo and the intake horn and pressurize it to say 30psi and see if it holds pressure, if it is loosing pressure get soapy water and spray over the boots and tubes to try and find bubbles. If nothing there try pressurizing just the cac same way minus the tubes. If you loose pressure there in the intercooler than your cac is cracked. If you cant get parts to pressurize it you could put a mix of soap and water (heavy on soap) on the boots and take it for a quick drivetrying to build high boost and pull over or turn around and look for any spots where there is a dry spot or bubbles, that should help find a boost leak if that's your problem. Hope that helps
#3
Thread
Thread Starter
Forum
Replies
Last Post
Shun70
Dodge Truck and Cummins Turbo Diesel Forum
1
09-20-2015 10:52 PM
Dertyd
24 Valve 2nd Gen Dodge Cummins 98.5-02
24
06-07-2015 02:45 PM
jstoshick
For Sale
0
10-02-2014 10:24 PM