RV News RVBusiness 2021 Top 10 RVs of the Year, plus 56 additional debuts and must-see units → ×

Thread Tools Search this Thread Display Modes
Old 12-03-2020, 11:48 AM   #1
New Member
2000 33' Land Yacht
Amarillo , Texas
Join Date: Dec 2020
Posts: 1
Exclamation Service engine soon dash light

Bought a used 2000 33ft Land yacht in August. Iíve had nothing but trouble. Service engine soon light came on second day I drove after filling gas tank. Shop did a tune up. Replaced all 3 batteries. 150 miles from home on first trip the light came on again. Had to have alternator and unjointed replaced in Colo. 350 miles later on trip home light came on again. Replaced gas cap and light went off. Left on trip in cold wether and discovered heater didní work. Then discovered the gas heater didnít work and water heater pump was busted and city electric hook up doesnít work right. Drove home in ice storm with no heat or defroster. Service engine light still on. Had to use portable heater on dash to keep windshield from freezing right in front of driver. Shop said no code showed for thermostat but suspected that was problem. Replaced thermostat and told to drive several times to see if light came back on. In the meantime $1000 for new water heater combo. 5time I drove it, service engine soon light came back on and it was cold enough to know heater still doesnít work. Codes ran again I have no manual for the engine? Where can I get one? At this point I just want to sell but canít with light on. Iíve read a couple of things that it could just need oil change? Should I cut the service engine light wire?
Vline is offline   Reply With Quote
Old 12-03-2020, 01:42 PM   #2

2003 25' Classic
Zanadude Nebula , Milky Way
Join Date: Jun 2007
Posts: 16,527
Images: 1
Welcome Aboard 👍

The gas cap turning the light off for a time indicates you may still have a small air leak in the emission system. Could be a line on the charcoal canister. Have you been given a fault code? P0447 is a general evap code, that in most cases won't effect drivability.
Any loss of power? Plugged Cat converter on older units is a concern.
Broken vacuum lines on the heater control box may be causing both the no heat & SES light concerns.

If this doesn't help I can only repeat what I told Customers when they called the GM store for help...hold the phone a little closer to the problem.

Good Luck

"Any nation that can survive what we have lately in the way of government, is on the high road to permanent glory."
Molly Ivins

ďChange is the new normal, if nothing changes, nothing is normal, everything changes, everything is normal.Ē

ROBERT CROSS is offline   Reply With Quote
Old 12-03-2020, 02:02 PM   #3
Slide Out Society #001
GCinSC2's Avatar
2007 30' Classic S/O
Somewhere , South Carolina
Join Date: Apr 2010
Posts: 4,113
Do you have the specific codes ?

Often just searching by code will point a tech in good directions.

Troubleshooting a lack of engine heat again pretty routine stuff. Didnít say fix is simple but basic I have heat here but not here tracing.

Also sounds like trials and tribulations of a 20 yr old RV and debugging systems unless sale was for ďperfect conditionĒ road and camp ready.


S/OS #001
2005 Dodge Ram 2500 5.9L 6 Speed
16" Michelins, Hi Spec Wheels, Max Brake, Carslile Actuator, Equal-i-zer, Dill TPMS. Campfire cook.
GCinSC2 is offline   Reply With Quote

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
No house power as soon as i turn engine off DBOrleana Electrical - Systems, Generators, Batteries & Solar 0 08-12-2020 08:34 PM
Zerk fitting on water pump and dash/engine powered a/c unit redfalcon507 Classic Motorhomes 4 05-26-2018 05:11 PM
Possible new TV's coming soon and not so soon. Isuzusweet Airstream Trailer Forums 12 01-29-2016 09:45 AM
'02 LY 26', engine won't turn over, no power to dash kardy Land Yacht/Legacy Motorhomes 6 01-28-2014 10:58 PM
Service Engine Soon kmamedia Mechanics Corner - Engines, Transmission & More... 5 08-04-2012 03:52 PM

Featured Campgrounds

Reviews provided by


This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.

All times are GMT -6. The time now is 09:43 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.