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2010 Expy EL Rear A/C Leak - Any ideas?
Hi Everyone, Back in May, I lost the A/C in my expy, and I noticed a hissing sound coming from the rear A/C Unit. After some diagnosing, I concluded it was the evaporator and bought a used Rear HVAC Assembly. I have the new unit hooked up, I've replaced all necessary seals, and the system...- S20Workstation4
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- Replies: 9
- Forum: 3rd Gen Ford Expedition General Discussion
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Engine Temp got to 250F, any damage?
Hello All, I replaced the radiator on my 2010 Expedition EL, and refilled the entire system with coolant. Long story short, there was an air bubble trapped above the thermostat, not allowing the coolant to get to it and open it up at 195F. Therefore, the engine had no antifreeze in it, which...- S20Workstation4
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- Replies: 5
- Forum: 3rd Gen Ford Expedition General Discussion
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Question about PCM Resetting...
Hello All, Following FordTechMakuLoco's PCM reset video, I reset the PCM and followed the normal correct procedure. I let it idle for 15 minutes, and then went on a drive, allowing it to shift through all the gears with light throttle application. I had to put the throttle about 80% due to an...- S20Workstation4
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- Replies: 0
- Forum: 3rd Gen Ford Expedition General Discussion
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Chain Rattle 800 miles after doing timing job....
Hello All, 2010 Ford Expedition EL XLT 4x4 - 219,000 Miles I did a full timing set back in August 2022 with all Ford OE Parts, except the Melling M340HV Oil Pump. I've only driven the vehicle about 800 miles since August, and I just noticed the rattle happening again. However, the rattle lasts...- S20Workstation4
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- Replies: 6
- Forum: 3rd Gen Ford Expedition General Discussion
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P0420 and P0430 - Need Help Diagnosing
Hello All, My 2010 Ford Expedition EL gave me a P0420 code (Cat Bank 1), about a month ago. I did a WOT test, no problems there. I did the mallet test, no signs of broken substrate in the converters (I tested both). Not too long after, it gave me another confirmed code P0430 (Cat Bank 2). It...- S20Workstation4
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- Replies: 15
- Forum: 3rd Gen Ford Expedition General Discussion
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Fan Speed 3 & 4 only works, Resistor?
Hello Everyone, Today, I noticed that the front blower only works on fan speed 3 & 4. I have a 2010 Ford Expedition EL, XLT. Basic HVAC dials, no seat heaters or automatic control system. Could this be the blower motor resistor? I understand that it usually only works on Fan Speed 4 when it...- S20Workstation4
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- Replies: 0
- Forum: 3rd Gen Ford Expedition General Discussion
