gmc forums   gmc forums
Go Back   GMC Forums > GMC Vehicles Currently In Production > GMC Yukon Forum

GMC Yukon Forum Forum for discussions regarding the GMC Yukon


ATTENTION: We're looking for moderators. Is anyone interested?
GMC Forum: My 1999 GMC YUKON, WHEN ITS DAMP OR RAINS, IT WILL NOT START.?
Reply
 
Thread Tools
  #1  
Old 06-03-2010, 10:55 AM
smashpunk68 smashpunk68 is offline
Junior Member
 
Join Date: Jun 2010
Posts: 1
Default My 1999 GMC YUKON, WHEN ITS DAMP OR RAINS, IT WILL NOT START.?

I Put A New Cap Wires Every 3 Months It Lasts For A Short Time And Starts Little By Little To Get Worse Any Ideas?????????
__________________
Powered by Yahoo! Answers
Reply With Quote

  #2  
Old 06-03-2010, 11:23 AM
Molson02536 Molson02536 is offline
Senior Member
 
Join Date: Dec 2009
Location: K/W Ontario Canada
Posts: 3,095
Send a message via AIM to Molson02536 Send a message via Yahoo to Molson02536
Cool

Quote:
Originally Posted by smashpunk68 View Post
I Put A New Cap Wires Every 3 Months It Lasts For A Short Time And Starts Little By Little To Get Worse Any Ideas?????????
Start with the simple and replace your Rotor and Cap with OEM or good products. It's common for the spark to jump in your distributor cap at highway speeds with cheap rotor and cap. The best ones for our Vortec engines are the Distributor cap with brass sleeves to keep the spake plugs from arcing, which is causing your misfire.

There is also a breather screen at the bottom of your distributor plate that tend to get dirty causing no ventilation under your distributor cap. Condensation is know to occur promoting corrosion to the electrical lead wire to your ICM and arching between your rotor and distributor cap causing premature failure.

The other thing that would also cause this issue is a worn distributor worm gear and there is to much play causing you to loose your timing at higher rpm's (Arching once more).

Keep me posted and good luck. http://www.accel-ignition.com/ Makes the brass post terminal distributor caps for the issues the Vortec has with arching.
Reply With Quote
  #3  
Old 06-04-2010, 08:38 AM
Z15 Z15 is offline
Senior Member
 
Join Date: Jun 2010
Location: Michigan
Posts: 443
Default

I would agree on using high quality parts like AC Delco. Many of the other brands are all the same, cheaply made imported from the far east.

If your wires, plugs, cap and rotor are not all AC Delco, then there in lies your problem IMO. Don' get me wrong, I am not a fan of using GM parts but when it comes to ignition parts, most of the others are junk IMO. Even the well known name brands are using cheap import sources.

Last edited by Z15; 06-04-2010 at 08:44 AM.
Reply With Quote
Reply

Thread Tools

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

Forum Jump



All times are GMT -5. The time now is 09:17 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
gmcowners.com recognizes that "GMC", it's logos and various model names and numbers are registered trademarks of the General Motors Corporation. These terms are used for identification purposes only. gmcowners.com is not affiliated in any way with the General Motors Corporation, GMC or any other company listed herein. All information on this site is the opinion of its members and not the opinion of the site itself. 2014 Madison Ross Media Group. All rights reserved. Content published on GMCOwners.com requires permission for reprint.
MADISON ROSS MEDIA GROUP MARKETPLACE
Need products for your GMC Truck? Check out your options at the links below:

No special deals available at this time...