Recent content by SportTracMoneyPit

Good luck with it. The timing chains x2 equal double the headaches. I honestly hate these motors. I’m on my 3rd. OEM lasted to 157k. First remanufactured one lasted less than 40k miles before a guide failed and broke a valve and tore up a piston. Too many moving parts in my opinion.

Lots of fouling and I’ll have to monitor to be sure there’s not another issue going on.

Found a second damaged harness with crossed wires. Cut, soldered and fixed, still no change, except the electric fan seems to be working better now. Finished the drive cycle from ecm reset and drove it (running terrible) to the state inspection station and it passed. No codes still. On the way...

Swapped in a new tps. Factory harness was spliced, soldered and heat shrunk before being wrapped in electric tape. Cleaned the throttle body. Inspected gaskets, harnesses and vacuum lines while it was partially disassembled. Put it back together and it’s still running like garbage with no...

Factory motor lasted to 157k 1st reman motor lasted to 194k. I only have a couple hundred miles on this one… hasn’t run right yet.

I haven’t had a chance to dig in deeper. This is a spare vehicle, so it hasn’t been a huge rush. Finally getting a code on the tps sensor has me running that one down before I go back to the fuel pressure dip I was receiving. With the fuel trims compensating for false tps readings and not...

I need to also to do a full reset to clear out the bad fuel trims from the previous issue. I will update when I get to working on this again.

I still have the issue after splicing and reinstalling the original connector back on. There was enough slack to cut out the damaged sections and still reach the sensor. There’s a possibility the sensor was fried with the bare wires crossing. If the new sensor doesn’t correct it I’ll have to dig...

So, after a month plus of this, I finally got 2 codes. P2135 and P0122. All throttle position sensor related. Makes sense with the terrible acceleration and power loss. The readings from the tps did not match what was really there. After some quick googling and forum searching I have the...

one of my neighbors had access to Forscsn and we scanned it. No stored codes. Took some shots of the live data and did a full ecm reset. Going to run it through a few drive cycles, but the problem is still there. Nothing stands out besides some differences in bank 1 and 2 LTFT. Scratching my...

The filter is literally miles old. Old one wasn’t that old, but I had a fresh filter in a box so I swapped, but the problem is still there.

I took it for a run today with the scanner hooked up and watched the live data. Under heavy load fuel pressure dropped to 25-26psi vs the steady 38-40 at idle through the scanner. It was breaking up prior to the low fuel pressure flashed up and went back to normal. I would imagine it’s pretty...

The heads were trash as a valve broke completely off when it jumped. Block, heads and rotating assemblies are remanufactured.

It was a fully remanufactured long block with some reused parts including accessories and intake. ECM was cleared and codes removed from when the motor timing jumped. It’s gone through a full drive cycle and all systems seem to check out, but no CEL and no codes.

2007 Ford Explorer Sport Trac Limited 4x4 194,000 with a freshly replaced 4.0 remanufactured engine. (Factory engine jumped time at 157,000. Replacement engine also jumped timing under 40,000 miles and luckily was replaced for free under warranty due to a defective parts). I also replaced the...