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Old 17-05-2012, 10:20 PM   #56
DZFord
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Join Date: Jan 2009
Location: Victoria
Posts: 877
Technical Contributor: For members who share their technical expertise. - Issue reason: LS Focus PCV Valve & Hose replacement, a very detailed write up with photos. 
Default Re: Fuel Consumption on your Focus

Quote:
Originally Posted by steambao
Figured I'd just knock down the list - my engine temp on the Dash has seem to be 'laggy' getting to mid range (even after 30 mins driving sometimes) when it use to always get to mid range within 10 minutes tops.

=> Maybe should move this to another post, as seems like diff topic to thread?
Your thermostat has gone. I had the same problem with my car. This will cause your engine to rev higher, and use more fuel. When I fixed my thermostat, I picked up about 0.5-0.6L/100km in fuel economy. Do a search on these forums to work out how to replace your thermo, there are posts on it already.
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