Postby BMXPath » Thu Sep 10, 2020 3:10 pm
V8 Pathfinder swap update:
I got her started May 15th. She wasn’t drivable at the time but the engine was running. Had like 8 or 9 codes with the check engine light. Some of the codes were throttle related and I
eventually got most of them worked out.
I’ve been driving her for about a month now. Still have a few issues and some reassembly to get done (cosmetic and the A/C). Main thing at this point is to get the correct transmission in her. Piecing together the main parts (engine, ECM, trans, and harness) from different trucks at a junkyard wasn’t the ideal thing to do. Turns out that a 2010 Titan ECM doesn’t communicate with the TCM inside a 2014 Titan transmission. Lucky for me the guy I bought the parts from is a friend of mine. He got me a 2010 Titan trans to replace the 2014 and is going to basically do an exchange. I will just need some new cat gaskets, trans filter kit, and some ATF fluid. I am going to install a new output shaft seal and torque conv seal while I am at it. We are probably gonna do that this weekend.
The transmission is in kind of a limp mode…. It shifts at 2500 rpm, every shift. Doesn’t matter if it is under load or easy driving thru the neighborhood. Interestingly, I can manually shift it
and SHE IS A BLAST!! I manually put her in first gear and just tap it up under hard acceleration, drag race style.
Let me tell ya… she runs like never before! The additional power is better than I thought it would be. My Pathfinder is a totally different vehicle/ beast now.
Here is something everyone will find interesting. Gas mileage is noticeably improved. Remember that my Pathfinder is 2wd. On my daily commute to and from work, in varying degrees of traffic, my trip computer usually showed and average of about 17 to 18 mpg. With the Titan swap, I now average 21. I haven’t done any lengthy road trips to determine how highway mileage is.