Decrease of 4 MPG after dealership service
04-29-2024, 11:22 AM
#11
Junior Member
Thread Starter
wow, what a horrible ordeal. Sounds like a combo of crappy work, with some ‘we don’t find a problem’ treatment mixed in for good measure!
id be curious to know if those ford warranties/service plans only pay out at the “warranty rate” and not at their normal rates. Not that that would/should be an excuse, but might explain putting the lowest level person on the work.
id be curious to know if those ford warranties/service plans only pay out at the “warranty rate” and not at their normal rates. Not that that would/should be an excuse, but might explain putting the lowest level person on the work.
and I still have 2 years left on it.
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dsg2003mach1 (04-29-2024)
04-29-2024, 01:02 PM
#12
Junior Member
Thread Starter
You or a local shop should check and make sure the Mass Air Flow (MAF) is plugged in to its connector. Check and make sure the air filter housing is installed properly with no gaps. Check and make sure the flexible air inlet hose to the throttle body is connected and secure.
There are diagnostic programs on the market (Forscan, TorquePro and others) but unless you feel comfortable doing your own diagnostics I would take it to another Ford dealership or a well equipped local auto repair shop for a diagnostic. In general air flow and temperature sensors are the issue when mileage is concerned.
There are diagnostic programs on the market (Forscan, TorquePro and others) but unless you feel comfortable doing your own diagnostics I would take it to another Ford dealership or a well equipped local auto repair shop for a diagnostic. In general air flow and temperature sensors are the issue when mileage is concerned.
One question....where does the air cleaner box get its air flow from? Is there an inlet piece somewhere that may have been removed and not replaced during the repair?
04-29-2024, 01:21 PM
#13
Senior Member
"One question....where does the air cleaner box get its air flow from? Is there an inlet piece somewhere that may have been removed and not replaced during the repair?"
Your question here brings up another possibility - I am aware of cases where debris found its way across the air pickup in the fender area. I believe in that case it was a piece of black foam from the windshield area. I am not familar with the arrangement on a 2014.
Keep us informed of your progress on this issue.
Your question here brings up another possibility - I am aware of cases where debris found its way across the air pickup in the fender area. I believe in that case it was a piece of black foam from the windshield area. I am not familar with the arrangement on a 2014.
Keep us informed of your progress on this issue.
Last edited by Jimboy; 04-29-2024 at 01:25 PM.
04-29-2024, 01:23 PM
#14
Junior Member
Thread Starter
"One question....where does the air cleaner box get its air flow from? Is there an inlet piece somewhere that may have been removed and not replaced during the repair?"
Your question here brings up another possibility - I am aware of cases were debris found its way across the air pickup in the fender area. I believe in that case it was a piece of black foam from the windshield area. I am not familar with the arrangement on a 2014.
Keep us informed of your progress on this issue.
Your question here brings up another possibility - I am aware of cases were debris found its way across the air pickup in the fender area. I believe in that case it was a piece of black foam from the windshield area. I am not familar with the arrangement on a 2014.
Keep us informed of your progress on this issue.
05-02-2024, 02:07 PM
#15
Big truck Driver
At the air box take a look under the wheel well you might have junk built up there and causing a restriction. Also check the intercooler and clamps. You might have a boost leak.
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GregGagnonF150 (05-02-2024)