Go Back   Dodge Diesel - Diesel Truck Resource Forums > 1st and 2nd Generation Ram - Years 1989-2002 > 1st Gen. Ram - All Topics
Reload this Page Boost went from 40 PSI to 15 ???
Sign in using an external account
Register Forgot Password?
Register Projects DTR Store Social Groups Search Today's Posts Mark Forums Read TSB & Recalls
Search

Reply
 
 
 
submit to reddit
 
Thread Tools Search this Thread Display Modes
Old 05-01-2008, 08:00 PM   #1
Elohim1
Registered User
 
Join Date: Feb 2008
Posts: 112
Boost went from 40 PSI to 15 ???
My turbo is wastegated at 40. I can now only get about 15. Power has reduced quite a bit. Feels like its about back to stock.

Things I did out of the ordinary before this happened.

1)I did add a quart of 2 cycle fuel to a full tank.
2)The engine did rev up momentarily because my accelerator return spring broke when I stepped on it.
3)Sprayed the injection pump area/ linkage with some lubricant.

Is my stock lift pump going bad, would this cause loss of boost???

My intercooler boots are new and connected, I have Tim's 3" tubes.

LMK what I need to check?

I have been gathering items for a big line kit and will be installing a piston pump?
__________________
91 Dodge,DRW/SWB, 4x4, 6x.013 edms,62/65/14 Phat shaft,Icebox CAI,RS9000 shocks, Autometer gauges,Silverline Stacks,HX40pipe, 3"SS ICtubes, NV4500,DD clutch,NP205,piston pump.

68 Jeep M715, ZZ502/502 cratemotor,Edelbrock MPFI, Rockwell Axles,OEM lockers,Stazworks beadlocks,47" Michelin XML's, PSC Hydra assist/ power steering,Hydraboost,RS9000 shocks,Th400, Np205 Twinsticked, ARB bumper,Mile Marker 12K Hyd.winch,Autometer PhantomII gauges,LED Lights, Painless wiring
Elohim1 is offline   Reply With Quote
Old 05-01-2008, 08:19 PM   #2
Tron
Registered User
 
Tron's Avatar
 
Join Date: Aug 2007
Location: VICTORIA B.C.
Posts: 353
Check the AFC diaphram and the little steel boost line going to it. Also might be the fuel pin (the little pin inside the pump when the afc diaphram is removed) With the diaphram removed work the throttle and see if the little pin pops out. If it does just push it back in so the afc can be reinstalled.
__________________
92 W250 4X4 AUTO EXT CAB 4.10's; K&N, 16CFM HOUSING, OLD SMOKEY FUEL PIN, ATM BOOST AND PYRO GAUGE'S, I.P. REBUILT AND TWEAKED, 3200 SPRING, STAN'S 4", NEW L.P. HELLA LAMPS WITH 55/100W H4'S ON RELAY'S, BUILT AUTO, AD-100, ARP STUDS, PORTED HEAD.
Tron is offline   Reply With Quote
Old 05-01-2008, 10:33 PM   #3
DBF
Registered User
 
DBF's Avatar
 
Join Date: Feb 2003
Location: Florida Panhandle
Posts: 413
Pressure test the intercooler. Might have blown a small hole in it.

Regards, DBF
__________________
1992 D250 LE CC, PDR rebuilt VE pump @ 15*, POD's, gages, H1C/16cm2, BHAF, ATS Exh Manifold, A518 w/DTT mod VB & 89% T/C, 4" Pinnacle exhaust, 3.54 LSD, TowPkg, various trans coolers, Borgeson steer shaft, 4wh disc brakes, 7226S Front Springs, RBW 5er hitch, KDP pinned, 245 kmiles.
(308/668)
2000 Jayco 269RD 5er.
DBF is offline   Reply With Quote
Old 05-02-2008, 08:03 AM   #4
j-fox
Registered User
 
Join Date: Mar 2002
Location: Illinois
Posts: 2,501
Recheck those boots!
__________________
2005 4 door 4X4 6 speed.
j-fox is offline   Reply With Quote
Old 05-02-2008, 10:40 AM   #5
JD730
Registered User
 
Join Date: May 2005
Location: Belvidere, NJ
Posts: 2,500
Quote:
Originally Posted by Tron View Post
Check the AFC diaphram and the little steel boost line going to it. Also might be the fuel pin (the little pin inside the pump when the afc diaphram is removed) With the diaphram removed work the throttle and see if the little pin pops out. If it does just push it back in so the afc can be reinstalled.
Thats possible, but mine with the air turn off to the AFC will run 30psi on the boost.


Quote:
Originally Posted by DBF View Post
Pressure test the intercooler. Might have blown a small hole in it.

Regards, DBF
Pressure test the whole setup from the intake side of the turbo, spray it down with soapy water to find the leak.
__________________
Mike
That's not a leak, its the external lubrication system.
The "Rattle Box"
93 W250 Silver Club Cab, 47RH rebuilt by me with Goerend goodies, HTB2 62/12, hydroboost brakes, plus a few other things, 424/1039, 1/4 mile 14.00@94.3mph
2000 2500, 4x4, 6 speed, 12 valve, Homemade WH1C/HX55W twins
96 2500, Club Cab, AT
93 W250 Green Club Cab, AT
92 Club Cab, AT
07 2500, Quad Cab, 5.9L, Auto (Dad's new ride)
John Deere Two Cylinders, too many to list.
JD730 is offline   Reply With Quote
Old 05-02-2008, 04:06 PM   #6
wannadiesel
Adminstrator-ess
 
wannadiesel's Avatar
 
Join Date: Mar 2003
Location: New Holland, PA
Posts: 22,593
Broke the breakover spring?
__________________
Faith
'93 D350 - DPS 6x16's, HTT Stage IV/14wg, PowerStroke IC, Snow water/meth, Walbro 392, Con-FE, pump tampering by owner.
390 HP/800 TQ on #2 only, 413 HP/852 TQ w/ water/meth - needs more air!
Dead KDP's = 72
wannadiesel@dieseltruckresource.com
wannadiesel is offline   Reply With Quote
Old 05-02-2008, 07:22 PM   #7
stackx2
Banned
 
Join Date: Feb 2008
Posts: 455
Quote:
Originally Posted by wannadiesel View Post
Broke the breakover spring?
what is the break over spring my friends truck did the same thing today
stackx2 is offline   Reply With Quote
Old 05-02-2008, 07:45 PM   #8
Elohim1
Registered User
 
Join Date: Feb 2008
Posts: 112
Quote:
Originally Posted by wannadiesel View Post
Broke the breakover spring?
The spring that connects where the engine data tag is located to where the throttle linkage is located. The throttle stuck open momentarily and shut the engine down with the key. Are you saying this is the breakover spring or are you stating the breakover spring could be the problem? What is the breakover spring?

AFC BOOT and line are fine.

I am definitely not getting near as much black smoke at WOT.
Retightened boots, do not detect any leaks ?

Could it be the stock lift pump is failing ???

Please keep posting.

Thanks
Chris
Elohim1 is offline   Reply With Quote
Old 05-02-2008, 07:54 PM   #9
bgilbert
Registered User
 
Join Date: Apr 2005
Location: Terre Haute,IN
Posts: 3,229
Quote:
Originally Posted by Tron View Post
Also might be the fuel pin (the little pin inside the pump when the afc diaphram is removed) With the diaphram removed work the throttle and see if the little pin pops out. If it does just push it back in so the afc can be reinstalled.
Did you try this?

The breakover spring is on the throttle linkage lever/plate, not the return spring.
__________________
Bill Gilbert
85 D350 crew with 90 6BT intercooled Getrag 3.07's
93 D350 single cab Getrag 3.54's
bgilbert is online now   Reply With Quote
Old 05-02-2008, 07:54 PM
 
 
 
submit to reddit
Reply

« Previous Thread | Next Thread »

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes
Linear Mode Linear Mode

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 11:47 PM.

Advertising Information - Contact Us - Dodge Diesel - Diesel Truck Resource - Cummins - Archive - Privacy Statement - Terms of Service - Top

Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2013, Jelsoft Enterprises Ltd.
vB.Sponsors
Copyright 2011, DieselTruckResource.Com
Contacts Backup