2007 lean bank 1, check gas cap, melting upper intake manifold - Taurus Car Club of America : Ford Taurus Forum

goldgolem · 01-14-2013, 10:25 AM

Recently purchased and was running fine until I lost power and gas mileage. After closer inspection egr valve was melting upper intake manifold. Replaced egr valve dpr sensor and egr valve control module, and upper intake manifold. Still getting some extra vacume through the egr control. I have been reading everywhere to try and figure out why only the bank one would be running lean with the lower gas mileage and rough low idle on start up. It idles fine after a few mins of running. I know terrible mess I'm about ready to wrap it around a tree and call it good haha. Any takers on what I should do next?

behlinla · 01-14-2013, 10:35 AM

Wow, a 2007. Not too many of those around (rental-only year).

Try unplugging the EGR solenoid (electrical connector) and seeing if you still have vacuum at the EGR valve or not. If you have more than about 0.5-1" of vacuum, then the EGR solenoid (EVR) is leaking too much.

I'm surprised you didn't get a P0402 code (EGR excessive flow) if the valve was opening partially. You replaced the DPFE, right?

If you have any other codes besides P0171, please list them. Also provide your fuel trims at idle and while driving if possible.

WJC · 01-14-2013, 04:41 PM

What do you mean by "extra vacuum through the EGR control"?

01-14-2013, 10:25 AM	#1 (permalink)
goldgolem Junior Member Member Number: 52257 Join Date: Jan 2013 Chapter: Northeast Drives: 2007 Visit: My Garage Posts: 1 Trader Score: 0 reviews Rep Power: 0	2007 lean bank 1, check gas cap, melting upper intake manifold Recently purchased and was running fine until I lost power and gas mileage. After closer inspection egr valve was melting upper intake manifold. Replaced egr valve dpr sensor and egr valve control module, and upper intake manifold. Still getting some extra vacume through the egr control. I have been reading everywhere to try and figure out why only the bank one would be running lean with the lower gas mileage and rough low idle on start up. It idles fine after a few mins of running. I know terrible mess I'm about ready to wrap it around a tree and call it good haha. Any takers on what I should do next?

01-14-2013, 04:41 PM	#3 (permalink)
WJC Devoted Member Member Number: 16719 Join Date: Sep 2008 Visit: My Garage Posts: 1,234 Trader Score: 0 reviews Rep Power: 8	What do you mean by "extra vacuum through the EGR control"? __________________ "Spare the duct tape, spoil the job."

01-14-2013, 10:35 AM	#2 (permalink)
behlinla Technical Advisor Member Number: 14275 Join Date: Dec 2007 Location: Wisconsin Chapter: Midwest Drives: 2006 Taurus SEL Visit: My Garage Posts: 5,664 Trader Score: 0 reviews Rep Power: 10	Wow, a 2007. Not too many of those around (rental-only year). Try unplugging the EGR solenoid (electrical connector) and seeing if you still have vacuum at the EGR valve or not. If you have more than about 0.5-1" of vacuum, then the EGR solenoid (EVR) is leaking too much. I'm surprised you didn't get a P0402 code (EGR excessive flow) if the valve was opening partially. You replaced the DPFE, right? If you have any other codes besides P0171, please list them. Also provide your fuel trims at idle and while driving if possible.

Remove Advertisements Sponsored Links
Ford Taurus Forum Advertisement