Quote:
Originally Posted by Davo53209@yahoo.com
Hmm, maybe I should replace the vacuum lines. I had considered that; but I'm not sure how many I should replace.
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Rather than just shotgun troubleshoot, consider using propane or carb cleaner and check for leaks around the vacuum connections. With the car running, spray it in suspect areas and listen for a change in idle to find a leak.
What's your driving like? Under 40 mpg in a VX indicates a serious problem if you stay under 70 mph. Sounds like a vacuum leak to me.