Engine/Transmission (1998.5 - 2002) Boost at full throttle only 10#Psi-was 22#Psi???6

[RobbyRam]

Help, my boost gauge(Westach)started reading only 10lbs Psi WOT. Previously it was 26# at WOT. (I don't know how long its been low because I rarely look at the reading, and the truck was running fine with no noticable loss of power)
I have already done the following at the suggestion of our diesel mechanic with no luck:
Checked all the turbo hoses; ran the truck briefly without the hose over the intake of the Turbo to check for clogged filter; tightened all the clamps; checked for water in fuel; checked for pinching of turbo gauge hose from the gauge to the threaded 1/8"NPT in the head behind fuel filter.
I ran out of fuel and it died last week, but it ran fine after filling up, but I haven't changed my fuel filter.
EGT's at WOT are about the same as when it showed 26#PSI.
Help

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Y2K Awesome Black LB 3500 QC SLT, 24Valve ETC ISB, 4x4, 4:10 LSD, DTT Custom prepared Auto transmission VB, Power Edge 'EZ', DD2's, K&N, Polished Stull Billet Grill/Fog inserts, Chrome Smitty-Built Step Rails, Mopar Chrome-Tipped Mud Flaps, A-Pillar mounted West-Tach Turbo/Pyro/Trans Temp gauges, Rancho 9000's, Diamond Plated Tool Box, + a bunch of other stuff. Fact:The First Fords' had 'DODGE' Engines! The new PSD's need them!

 

[work2muchplay2little]

Sounds like you've eliminated everything except the gauge itself (or sender if electronic).

Good luck.

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Kurt Voss
********* 1999 2500 24VCTD AUTO 4x4 QC LB Laramie SLT, Luverne stainless steel nerf bars, 3 piece bug deflector, mopar mud flaps, Line-X bedliner, Blue Chip Fuel Management System (Premium), Psychotty Air, DD3's,TTPM, DD 4" exhaust, HX40, DTT VB/TC(91%) , Mag-Hytec transmission pan... YEEEEEHAAAA!!
2000 4x4 Z71 Tahoe, all options, rear AC, brush guard, nerf bars, mobile video system, after market 3rd row seat... the ultimate urban assault vehicle!

 

[RobbyRam]

Help-go to top!

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Y2K Awesome Black LB 3500 QC SLT, 24Valve ETC ISB, 4x4, 4:10 LSD, DTT Custom prepared Auto transmission VB, Power Edge 'EZ', DD2's, K&N, Polished Stull Billet Grill/Fog inserts, Chrome Smitty-Built Step Rails, Mopar Chrome-Tipped Mud Flaps, A-Pillar mounted West-Tach Turbo/Pyro/Trans Temp gauges, Rancho 9000's, Diamond Plated Tool Box, + a bunch of other stuff. Fact:The First Fords' had 'DODGE' Engines! The new PSD's need them!

 

[mikel]

Get a different gauge and try it. There may not be anyting wrong with your truck, it may be a bad gauge.

Mike

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'99 QC 2500 SLT Driftwood 2wd SB 24v Auto 3. 55 LSD
ISSPRO boost and pyrometer, Autometer 3 gauge replacement pillar, Walker 24168, DTT VB
'00 Durango SLT 360, 3. 55, Patriot Blue
-- email address removed --
Howdy Agg's!

 

[csutton7]

no check engine light--truck is running the same--sounds like a bad guage---chris

 

[MikeR]

If your EGT's are the same as before,then your boost gauge is bad. You'd really notice the performance difference if you lost 16psi.

-Mike

 

[Larry Willard]

Check the line from engine to gauge, I had that problem on '96 and traced to a hole rubbed in hose.
Larry

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Ram Rod
'01 3500 white quad cab sport 4x4 ETH DEE SLT+ 4:10s posi Pac brake combo gauge westach fuel pressure gaue with 2 senders tow/camper pkg. 20k reese 5th hitch
35' holiday rambler 5th wheel

 

[TurboDog]

RobbyRam?

I know this is an old post, but my combo gauge just started doing the same thing. Truck seems to perform as usual, but max boost went from 30lbs to 10 lbs. Anyone know if RobbyRam had a bad gauge, and can they be sent in to be fixed? I have also PM'd RobbyRam.
Thanks.