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:confused: This has probably been covered before but I notice that I can not get over 14-15 lbs boost in OD even at WOT around 2k rpm. Get 19 psi at same readings in other gears, 2k rpm, 1k egt, no drop in fuel pressure. Does over drive electronically somehow limit boost pressure to 14-15 psi...

Bought part# 3990105 lift pump from Cummins. Curious about #3990082 mentioned in TDR issue 37, page 48 in the 24 valve engine section. Has this pump been superseded by bigger number. My new pump has a date of 7Nov,2002 on package. Anyway, I now must install the pump. Can some of you old hands...

Just finished installing westach fp guage from Jeno's. Idle 8psi wot about 5psi. Truck runs good, no complaints. Do I have a problem? My next project is 4" exhaust and edge EZ or comp. I would like to change injectors to dd2's or? when I get trans work done hopefully next summer. I don't want to...

TDR issue 37, page 48, under 24V engines lists the latest new ( ?) part number for lift pump replacement. Gives both D/C & Cummins numbers. Does anyone have feedback on this pump yet?

Update on my post regarding E-brake and turbo failure. After the Cummins facility had kept me from my truck, they said it was fixed today. They found the exhaust header blowing-by when back pressure was applied by E-brake. Apparently, they cleaned and replaced gasket and bolts and the noise went...

I've been a TDR member since '98 and have read and studied info on this site hoping to learn as much as possible. Never thought i had anything to contribute, till now. I'm a 98. 5 3500,4x4, auto. All stock except for addition of E-brake. Used mostly for pleasure and towing 26' sport uttility...