Ads
News service and business centre for materials handlingHOME
DISCUSSION FORUMS : Forkliftaction.communicate
Surging Idle when Cold
I have completely replaced all hoses from the regulator, to the dither valves, to the carburator, I have swapped the o2 sensor, the mixer(with throttle body and electronic throttle control), i have swapped the regulator and dither valves(dither valves were bad, I have new ones on order). and now my truck surges/lopes during idle untill the truck warms up. The truck also has new spark plugs, PCV valve rattles/blows through only 1 directions and has great vacuum when hooked up. As stated in other threads, If i unplug the wire harness from the dither valves, the surging goes away. Please Help!! (this all started with a code 771 and dither valves you could blow through)
  • Posted 3 Oct 2018 02:11 AM
  • • Modified 3 Oct 2018 02:12 AM by poster
Reply Report
Total replies: 2. Showing items 1 - 2 of 2 results.
Replies
Check vacuum hose brass fitting to the mixer assure the fitting orifice is not plugged Change the PCV valve.
Woodward fuel system runs very lean so any change in vacuum will
trip a fault code.
  • Posted 5 Oct 2018 02:04 AM
Reply Report
Also make sure the plug gap is correct. Doosan requires.035-45, often the new platinum plugs from dealer are gapped to.060 and this can cause rough idle.
  • Posted 12 Oct 2018 12:23 AM
Reply Report
Total replies: 2. Showing items 1 - 2 of 2 results.

Having trouble using the Discussion Forums? Contact us for help!

Forkliftaction.com accepts no responsibility for forum content and requires forum participants to adhere to the rules. Click here for more information.
Ads
©Forkliftaction.com
Forkliftaction Media Pty Ltd
PO Box 1439
Milton QLD 4064
Australia
Contact Forkliftaction.com
About Forkliftaction
The Forkliftaction Team
Privacy Policy
Site Map
Help 		Business Directory
Discussion Forums
Industry News
Events Calendar
Jobs & Resumes
Photo Galleries 		Blog articles
Our Bloggers

Industry Brands
Company Index
Regions & Countries 		Machinery-onQ.com

Advertise on Forkliftaction
Editorial Features / Calendar
Featured Businesses
Past News Editions
Industry Associations
Storing your login information automatically.

When you select the 'Remember me' option, your login information will be stored on your computer in the form of a cookie. When you visit Forkliftaction.com again, the stored login information will be retrieved automatically and you will not have to submit your login parameters (email address and password) each time you want to visit our members-only pages.

A cookie is a small piece of data that is sent to your browser from a web server and stored on your computer's hard drive. A cookie can't read data off your hard disk or read cookie files created by other sites. Cookies do not damage your system.

x

MAIL A FRIEND