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 08-19-2008, 11:12 AM   #1
Senior Member
 
Bob N Deb's Avatar
 
Vintage RV Owners Club
Fleetwood Owners Club
Join Date: Oct 2007
Location: Oliver BC
Posts: 236
I posted this on the ford forum but maybe someone here can help
we have been traveling through the mountains and it is very hot we have been loosing power on hills down to 5mph we had the fuel pump replaced in march and changed the fuel filter 2 days ago on the side of the road yesterday it was cooler and we could drive ok .
Any sugestions vapor lock ? cataletic converter ? anu sugestions and solutions appreciated
we are now sitting in a beautiful riverside campground in the rain at least we have all the comforts of home
Bob
__________________

__________________
Bob & Deb in a 1991 Southwind
being pushed by a 1976 MG Midget
Life is good
Bob N Deb 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 08-19-2008, 11:12 AM   #2
Senior Member
 
Bob N Deb's Avatar
 
Vintage RV Owners Club
Fleetwood Owners Club
Join Date: Oct 2007
Location: Oliver BC
Posts: 236
I posted this on the ford forum but maybe someone here can help
we have been traveling through the mountains and it is very hot we have been loosing power on hills down to 5mph we had the fuel pump replaced in march and changed the fuel filter 2 days ago on the side of the road yesterday it was cooler and we could drive ok .
Any sugestions vapor lock ? cataletic converter ? anu sugestions and solutions appreciated
we are now sitting in a beautiful riverside campground in the rain at least we have all the comforts of home
Bob
__________________

__________________
Bob & Deb in a 1991 Southwind
being pushed by a 1976 MG Midget
Life is good
Bob N Deb is offline   Reply With Quote
Old 08-19-2008, 03:46 PM   #3
Junior Member
 
Join Date: Aug 2008
Posts: 3
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Bob N Deb:
I posted this on the ford forum but maybe someone here can help
we have been traveling through the mountains and it is very hot we have been loosing power on hills down to 5mph we had the fuel pump replaced in march and changed the fuel filter 2 days ago on the side of the road yesterday it was cooler and we could drive ok .
Any sugestions vapor lock ? cataletic converter ? anu sugestions and solutions appreciated
we are now sitting in a beautiful riverside campground in the rain at least we have all the comforts of home
Bob </div></BLOCKQUOTE>I am new to this post stuff so I hope this works. We just returned from the Grand Canyon in a 2007 SOuthwind. We could not get up the hill in Albuquerque on I40 west. Drove to a Ford dealer and they did tests claiming nothing wrong. Left reluctantly and headed back up the same hill. A slow 50 but made it with no problem. I think they did something but did not tell me. I lost significant power and the Tack went over 5000 to get up at 30 the first time. Whatever they did not do it workded.
__________________
Coveman is offline   Reply With Quote
Old 08-19-2008, 06:17 PM   #4
Senior Member
 
Join Date: Jan 2008
Location: Big Bear Lake, Ca
Posts: 886
I have the same year and engine. First of all what do you define as altitude and what type of inclines? I go from 6'000 to 7'500 feet, 16 percent grades at 90+ degrees. Because of the hairpin turns I slow to 5 then accelerate to 15 in 1st. then switch to second. On the other side I go from sea level to 8'400 feet at 90+ degrees with no problem, hitting the summit at 35 to 45. We also leave the air on.

On our recent trip at 104+ at 8,000' I did notice some power loss but not down to 5. I turned the air down and it made a big difference. I recently put a freeflow exhaust on it which gave me a good power gain on the inclines. The engine was recently tuned, plugs, wire syn. oil, etc.

If you are in low gear on a 16% grade you should be able to accelerate from a stop to 15 mph.
__________________
2004 CRV TOAD/1990 WRANGLER TOAD ROCK BUILT
Forest Grump is offline   Reply With Quote
Old 08-20-2008, 08:55 PM   #5
Senior Member
 
bdpreece's Avatar
 
Monaco Owners Club
Join Date: Mar 2000
Location: Woodburn Oregon USA
Posts: 2,596
Most probably vapor lock. We experienced similar problems with both a Dodge pickup when towing and once more with a class A motorhome with a Chevy motor. In both cased I purchased a high pressure electric fuel pump which I inserted in the line just after the tank. Solved my problem on both occasions.
__________________
Brian, Loretta & Daisy (Golden Retriever)
2008 Holiday Rambler Endeavor 40 PDQ , ISL 400
2014 Ford Explorer toad
bdpreece is offline   Reply With Quote
Old 08-21-2008, 07:49 AM   #6
Senior Member
 
Bob N Deb's Avatar
 
Vintage RV Owners Club
Fleetwood Owners Club
Join Date: Oct 2007
Location: Oliver BC
Posts: 236
Just an update we drove fine for 2 days to get home the weather was cooler so I am guessing it was a vapor lock I made an appointment with the shop to check it out.
Forest Grump where is that 16 percent grade I sure want to avoid that even when it is in good shape I hate 9 p/c I cant imagine 16
Bob
__________________
Bob & Deb in a 1991 Southwind
being pushed by a 1976 MG Midget
Life is good
Bob N Deb is offline   Reply With Quote
Old 08-21-2008, 08:51 AM   #7
Senior Member
 
Join Date: Jan 2008
Location: Big Bear Lake, Ca
Posts: 886
Highway 18 from Lucerne in the Mojave up to Big Bear Lake. Big Trucks are warned about the grade. During fires BB Airport becomes a heliport and I've seen jet fuel laden tankers coming up and down.

Winter is even more fun.
__________________
2004 CRV TOAD/1990 WRANGLER TOAD ROCK BUILT
Forest Grump is offline   Reply With Quote
Old 08-23-2008, 09:29 PM   #8
Member
 
auto's Avatar
 
Join Date: Feb 2008
Posts: 68
On fuel injected engines with evap. systems and pumps already mounted in the tank vapor lock is almost a non issue. It was a common occurrence in units where the pump is outside the tank and must pull rather then being in the tank and pushing fuel. A 91 ford 460 may have two fuel pumps 1 in tank primer or low pressure pump and 1 external high pressure pump. You may already have it solved with the filter.
__________________
auto is offline   Reply With Quote
Old 08-24-2008, 02:27 AM   #9
Community Moderator
 
RV Wizard's Avatar


 
Country Coach Owners Club
Appalachian Campers
Gulf Streamers Club
Join Date: Mar 2000
Location: Chattanooga, Tn.
Posts: 12,062
Some of the mid 90's Fords were known for bad fuel pumps and vapor locking was an issue even I had to deal with. If the filter does not fix the problem you may want to have the pressure checked coming off the pump. Good luck and keep us posted.
__________________
Mike, RVIA & RVSA Certified Master RV Technician
Amy, Dr. Assistant - Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7
RV Wizard is offline   Reply With Quote
Old 08-24-2008, 12:25 PM   #10
Member
 
auto's Avatar
 
Join Date: Feb 2008
Posts: 68
Article No.
95-7-11

04/10/95

^ LACK OF POWER - VEHICLES WITH 7.5L ENGINE AND CATALYTIC CONVERTER

LIGHT TRUCK:
1988-93 ECONOLINE, F-25O, F-350, F47/53

CALIBRATION:
8-97A-R02, 8-97A-R10, 8-98A-R02, 8-98A-R10, 0-97A-R05, 0-97A-R10, 0-98F-R05, 0-98F-R10, 1-97A-R00, 1-98F-R00, 1-98C-R00, 0-98C-R00, 9-98A-R00, 0-98E-R05, 0-98E-R10, 0-98A-R05, 0-98A-R10, 1-98A-R00, 1-98E-R00, 2-98E-R00, 2-98E-R10, 2-98A-R10

ISSUE:
Some vehicles may exhibit a lack of power or a no start condition. This condition may be diagnosed as an exhaust restriction caused by a plugged catalytic converter and/or muffler. Idle quality may be poor during both cold and warm engine temperatures.

ACTION:
Determine if the catalyst is plugged and replace as necessary. Replace the Powertrain Control Module (PCM) with a new PCM which has a new operating strategy, the Idle Speed Control (ISO) Actuator and the Expansion Chamber. Refer to the following Service Procedure for details.
Article No.
93-2-7

01/18/93

^ FUEL SYSTEM - FILTER - REVISED SCHEDULED MAINTENANCE - GASOLINE ENGINES - SERVICE MANUAL REVISION
^ LACK OF POWER/POOR PERFORMANCE - 4.9L, 5.0L, 5.8L AND 7.5L - RESTRICTED FUEL FILTER

LIGHT TRUCK:
1990-93 BRONCO, ECONOLINE, F SUPER DUTY, F-150-350 SERIES, F-47, F-53

This TSB article is being republished in its entirety to include 1993 model year vehicles.

ISSUE:
It is recommended that the frame mounted fuel filter be replaced at regular intervals of 15,000 miles (24,000 km)/15 month intervals. This is more frequent than the 22,500 miles (36,200 km)/22 month intervals stated in the Service Manuals. This shorter interval is necessary because of the changing nature of fuels available. A partially clogged or restricted fuel filter may cause such driveability symptoms as poor performance, lack of power and hard starting.

ACTION:
Replace the frame mounted fuel filters at 15,000 miles (24,000 km)/15 month intervals.
__________________
auto is offline   Reply With Quote
Old 08-30-2008, 07:34 AM   #11
Senior Member
 
Bob N Deb's Avatar
 
Vintage RV Owners Club
Fleetwood Owners Club
Join Date: Oct 2007
Location: Oliver BC
Posts: 236
Just an update for anyone interested I am often curious about how others problems were resolved so thought I would post my solution.
we had the motorhome in the shop last week and the computer said change the O2 sensor so next week when we go on our next trip we'll see if that fixed it .
__________________

__________________
Bob & Deb in a 1991 Southwind
being pushed by a 1976 MG Midget
Life is good
Bob N Deb 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
Loosing Front Hub Caps Ronnie Bledsoe 2006 Dutchstar 43' Spartan Motorhome Chassis Forum 23 08-21-2009 10:40 AM
loosing power Bob N Deb Ford Motorhome Chassis Forum 3 08-20-2008 03:51 AM
Intermittent electrical problem - no mirror power or camera power born2camp Workhorse and Chevrolet Chassis Motorhome Forum 5 07-14-2008 04:45 PM
loosing 1 plug, will you notice lwmuddy Workhorse and Chevrolet Chassis Motorhome Forum 25 06-04-2006 05:37 PM
Loosing Front Hub Caps MH-General Discussions & Problems 20 12-31-1969 07:00 PM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 09:59 AM.


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