Power loss up hills and with acceleration - Off-Road Forums & Discussion Groups
Diesel Tech Diesel-powered discussions, all makes and models of 4x4's.

 
LinkBack Thread Tools Display Modes
post #1 of (permalink) Old 02-22-2010, 10:09 PM Thread Starter
Newbie
 
Join Date: Jun 2009
Location: St Kitts
Posts: 11
Thanks: 0
Thanked 0 Times in 0 Posts
 
Power loss up hills and with acceleration

I have a 1993 Terrano 2.7L turbo D. Started noticing some power loss so I bought a K&N air filter changed the fuel filter and the oil. Still is real sluggish up hills it wonít go faster than 20-25kmh (up hill) seems like the problem is it wonít really go past 3000 or so RPM. So if I drive slow (donít bring rpms up to high) I can get the truck going as fast as I want it but if I need to pass some one or go up a hill it wont really rev past 3000 rpm just stays there with the pedal to the floor with little to no acceleration. Not sure what to do? Where I live there are no diagnostic mechanics.
Justin
JustinB is offline  
Sponsored Links
Advertisement
 
post #2 of (permalink) Old 03-02-2010, 10:11 PM
Newbie
 
rnkburg's Avatar
 
Join Date: Jan 2010
Location: Unites States
Posts: 11
Thanks: 0
Thanked 0 Times in 0 Posts
 
Can't say that i am anywhere near an expert on that type, but related to the diesels we deal with, I would start with fuel pressure. You may have a lift pump going out. It's a start, check the pressure.

1994 Dodge Ram 2500 4x4
Built Auto Tranny including ATS tq, DTT Billet shafts, Suncoast dual laminate flex plate, upgraded valve body, Amsoil fluids.
370 Marine Injectors - True Bosch injector
191 DV's - True Bosch DV's
Truax's special tuning w/ way too bumped timing
Head work
BD Super B Special Turbo
TST Fuel Plate
Opened that Exhaust, and fixed that KDP
Of course the essential gauges
rnkburg is offline  
post #3 of (permalink) Old 03-08-2010, 07:53 PM
Moderator
 
Shorts's Avatar
 
Join Date: Oct 1999
Location: Texas
Posts: 6,137
Thanks: 0
Thanked 0 Times in 0 Posts
 
+1 fuel pressure

Also should figure out if you've got boost.

Shorts
Shorts is offline  
Sponsored Links
Advertisement
 
post #4 of (permalink) Old 07-22-2010, 02:46 AM
Novice
 
Join Date: Jul 2010
Location: texas
Posts: 38
Thanks: 0
Thanked 0 Times in 0 Posts
 
Cool

Sounds like the throttle position sensor is out of adjustment. Check out this link for info on adjusting it:
http://www.4crawler.com/4x4/CheapTricks/Ö

As far as the truck revving when you are at a stop light, I bet it only does this when the brake is on. You more than likely have the idle set too high. The truck has a sensor that cuts the fuel out when you are on the brake to try and save gas. If the idle is set too high, the computer tries to save gas by cutting the fuel and you get the constant up and down revving of the engine. If you take your foot off the brake, it should stop. I'd start by turning the idle down some with the screw on the throttle body. Try a half turn at a time. Idle should be around 750-850 RPM.
truckboy is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Off-Road Forums & Discussion Groups forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome