Go Back   iRV2 Forums > MOTORHOME FORUMS > MH-General Discussions & Problems
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 09-16-2010, 08:20 AM   #1
Junior Member
 
Damon Owners Club
Join Date: May 2010
Posts: 19
Chevy 7.4,Throtle postion sensor problem??

Hi,

Have a 1995 7.4ltr RV thats been running rough for ages, thought it was the timing being set up wrong, but, just pluged it in to diagnostic and it ses 'throtle position sensor (TPS) to higher voltage'
Any one had this before?
is it another problem sending to much voltage to the TPS?
Or is it the TPS itself being faulty?
Am in the UK so not easy to get parts to just start replacing things
Thanks
__________________

__________________
jcramphorn is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 09-16-2010, 09:19 AM   #2
Member
 
Bert_64's Avatar
 
Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 71
Should be 0.5volts at closed throttle. There is 2 torx screws on will allow for adjustment. Measure with the engine off and the ignition in the run position.
__________________

__________________
01 Winnebago Brave SE 31' P32 Workhorse w/ 7.4l
99 Jeep TJ
Me, DW-Donna, DK's- Julia & Anna
Bert_64 is offline   Reply With Quote
Old 09-16-2010, 10:36 AM   #3
Junior Member
 
Damon Owners Club
Join Date: May 2010
Posts: 19
thanks,, its running at 4.75volts with the engine running, il go and try it now with the engine off
__________________
jcramphorn is offline   Reply With Quote
Old 09-20-2010, 04:19 PM   #4
Member
 
Join Date: May 2007
Location: Central Minnesota
Posts: 30
If the TPS adjustment does not fix the problem look at the EGR valve. Had periodic missing and rough idle. Chased the plug wires, spark plugs, rotor, dist. cap, etc, to no avail.

Finally found a stuck/sticking EGR operator stem. Cleaned carbon off of the valve stem to get it running, then replaced it with new. Only two bolts and a vacuum line to check the operation. Once off of the engine, push the stem in and out to see if it operates freely.

Now the unit runs great!

Tom
__________________
Travel Supreme: 36' 5er, 3 slides as lake cabin w/all the lake-side toys.
tjwolf is offline   Reply With Quote
Old 09-21-2010, 05:28 AM   #5
Senior Member
 
InPursuit's Avatar
 
Solo Rvers Club
Workhorse Chassis Owner
Join Date: Jun 2010
Location: S. Texas
Posts: 272
the signal from/through the TPS device affects all sorts of things.
My main symptom was reluctant up-shifting from the auto transmission.

good to go now.
__________________
Bryan. 2000 Georgie Boy Pursuit.


InPursuit is offline   Reply With Quote
Old 09-24-2010, 03:08 AM   #6
Junior Member
 
Damon Owners Club
Join Date: May 2010
Posts: 19
Thanks

It was the TPS, got one from NAPA for $29. Put it on and instantly it transformed the engine, i first bought the Rv 3 years ago and now realise its had this problem the whole time!
__________________
jcramphorn is offline   Reply With Quote
Old 09-26-2010, 04:10 PM   #7
Senior Member
 
Damon Owners Club
Join Date: Jun 2006
Location: Middletown,OH
Posts: 183
Glad you got your problem fixed. Do you have means to look at your OBD-1 data port.??
__________________

__________________
Dave

Callsign: KD8W
hamdave is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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 Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Dolly towing a Chevy HHR rodgerhome Toads and Motorhome Related Towing 11 01-29-2015 08:46 AM
Chevy HHR - Blue Ox or Roadmaster Base Plates? dkhender Toads and Motorhome Related Towing 17 10-08-2010 02:14 AM
wiring diagram for 91 chevy chassis 91pacearrow3 Fleetwood Products Owner's Forum 3 08-15-2010 06:56 PM
Hydraulic Disc Brakes connecting to Chevy controller Squirrel Excel Owner's Forum 11 10-24-2009 06:11 PM
Chevy Radio Does not like ScanGauge hdossett iRV2.com General Discussion 3 08-12-2009 07:56 PM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 01:50 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.