I know, there are tons of threads with probably the same title but hear me out if you will...
Yesterday (7/24/16) it was about 94°F I loaded up, maybe, a 400 lb total weight trailer with one canoe. Expy towed it fine like usual. I drove 1 hour down to the canoe spot and ended up having to take a dusty dirt road following my buddy in his 5.0 F-150. Needless to say the dirt the road was very dusty and my truck and his got covered in dust form the road.
I was dropping off the trailer late that night after having some minor quirks on the drive home with the accelerator and heading up a slight grade to my buddy's house I noticed the low end of my gearing had little to no power (I was on the highway driving home therefore didn't notice) and I had to punch it to get the truck to downshift so I could get power from the high end of the previous gear, but as soon as it shifts up I lose significant power in the beginning of each gear and it feels like it has almost no throttle response or a very bad misfire almost. Up until yesterday after towing and going through the dust the truck was running pretty good, no significant issues with the throttle although I had planned to clean it and the MAF sensor.
I dropped off the trailer figuring maybe it didn't like towing the 400lbs but it was still there, same issue without the trailer, that night washed the truck thoroughly outside and underneath but didn't really tackle the engine bay too too much.
Is it possible this could just be a dirty throttle body? MAF sensor, air filter, fuel filter or something? Or do I need to look into the fuel pump/tranny and such?
Here's whats been done (Motorcraft parts only):
- Fuel filter has 7k on it
- Spark plugs have 12k on them (COPs are original think they need replaced)
- Air filter has 7k on it
- Oil filter has about 1k on it (full synthetic Mobil 1)
- VCT solenoids have about 0.7k on them
Everything else I consider to be original as the PO was only noteworthy with oil changes, so:
- COPs never been checked-changed
- Throttle body never been cleaned
- MAF never cleaned
...and so on...
Yesterday (7/24/16) it was about 94°F I loaded up, maybe, a 400 lb total weight trailer with one canoe. Expy towed it fine like usual. I drove 1 hour down to the canoe spot and ended up having to take a dusty dirt road following my buddy in his 5.0 F-150. Needless to say the dirt the road was very dusty and my truck and his got covered in dust form the road.
I was dropping off the trailer late that night after having some minor quirks on the drive home with the accelerator and heading up a slight grade to my buddy's house I noticed the low end of my gearing had little to no power (I was on the highway driving home therefore didn't notice) and I had to punch it to get the truck to downshift so I could get power from the high end of the previous gear, but as soon as it shifts up I lose significant power in the beginning of each gear and it feels like it has almost no throttle response or a very bad misfire almost. Up until yesterday after towing and going through the dust the truck was running pretty good, no significant issues with the throttle although I had planned to clean it and the MAF sensor.
I dropped off the trailer figuring maybe it didn't like towing the 400lbs but it was still there, same issue without the trailer, that night washed the truck thoroughly outside and underneath but didn't really tackle the engine bay too too much.
Is it possible this could just be a dirty throttle body? MAF sensor, air filter, fuel filter or something? Or do I need to look into the fuel pump/tranny and such?
Here's whats been done (Motorcraft parts only):
- Fuel filter has 7k on it
- Spark plugs have 12k on them (COPs are original think they need replaced)
- Air filter has 7k on it
- Oil filter has about 1k on it (full synthetic Mobil 1)
- VCT solenoids have about 0.7k on them
Everything else I consider to be original as the PO was only noteworthy with oil changes, so:
- COPs never been checked-changed
- Throttle body never been cleaned
- MAF never cleaned
...and so on...