Ford Contour While only built on a short time span, the Contour was very popular with people of all driving styles, from the base model making for a great family car, to the SVT making a great track toy.

Cannister purge issue, surging

Old 05-08-2015, 01:36 PM
Junior Member
Thread Starter
Join Date: May 2015
Location: Los Angeles area
Posts: 3
Default Cannister purge issue, surging

After I park my '98 Contour with Zetec 2.0 4 facing downhill, I get surging at all speeds, including idle where it's most noticeable. The engine will speed up maybe a few hundred rpm for about five seconds, then slow down for about the same amount of time, and repeat.

I'm thinking gravity might be pushing fuel through the lines and loading up the charcoal canister, then the on/off speedup is a purging process. This can't be entirely normal, so how do I fix it?
Old 05-08-2015, 02:55 PM
Senior Member
Join Date: Jun 2010
Posts: 9,164

When you put fuel in the tank do you try to get as much in as you can ? If so , canister may be overloaded with fuel. Stop putting fuel in when the nozzle first shuts off if this is what is happening.
Related Topics
Thread Starter
Last Post
Sue Ouderkirk
Ford Expedition
05-18-2015 03:30 PM
Ford Escort
01-27-2012 02:16 PM
Ford Ranger
05-06-2009 07:03 AM
Ford Explorer
12-05-2006 01:28 PM

Thread Tools
Search this Thread
Quick Reply: Cannister purge issue, surging

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.