OK, so what I thought would be an easy job turned into a big PITA. Well, mostly because of trying to located tools to do the job as well as I had only done two of these things routinely before (rotate tires and I/O speed sensors).
However, I now have an issue I am seeking help on. Question posted near bottom.
So, the evening last night started OK with running SeaFoam through the PCV valve after removing my spark plugs and putting in my old. One question here is that I fed it in through the PCV valve itself by attaching a hose to it and suctioning it in. Should I have gone of the other end of the hose where it connects to the nipple on the side of the motor instead? I put a half bottle in that way and the other half in the gas tank. Got little no no smoke out of it. Took off for a spirited drive and filled up the tank.
Got back, swapped the spark plugs back out and then decided I would change out the PCV valve. Well, I got the old one out and was putting in the new when I over torqued it just a bit and heard a crack in the plastic valve. Went to loosen it and it snapped off inside the plenum! A few angry words came out and I had a time getting the threaded piece out of the plenum to put back the old. So, after a long day I would wait until today to do the rest.
On todays agenda, O2 sensors, speed sensors, tranny fluid and filter, differential fluid and rotating tires.
O2 sensors a cake walk even with it being the first time I've swapped these.
I/O sensors slightly more of a pain, especially the Input. Output not as bad but still tricky.
Differential fluid easy for the most part, but somewhat rough getting the drain plug out. A first for me here.
Transmission pan drop real rough! Took all my strength to break that thing loose. Once off, cakewalk of course! Never done one of these before either!
Rotated the tires.
Now here is my issue that I need some help!
Dropped in 3 qts ATF+4, started it up for a minute, shifted through P-N-D and back. Added another quart, repeated sequence.
Took it out for a drive around the block, upshifted smoothly.
However when coasting down from 4-3 it is pretty harsh. Got back home, checked the levels, was low, added about another quart. Went out for another drive and stopped to check it, motor had been well heated by now but was still downshifting quite hard from 4-3, only in auto mode and NOT in A/S.
Levels reading at low on the stick. So I added another half quart taking the total up to 5.5 quarts. Going for yet another drive, still hadn't changed anything. As I had used up basically all of my fluid, stopped at Advance Auto, checked it again, now the levels looked high! Bough a extra quart just in case.
Turned car off, ran into another store and pulled fuse N under the hood to reset the computer. Came out, drove home, no change?
Anyone else experience this 'bump' shift coasting to a downshifting from 4-3 on a roll?
Any thoughts? I'm going to wait until the morning to check the cold fluid levels. Is it harming anything with these harsh shifts even if there is nothing else wrong in the up-shifting or the 3-2-1 downshift? I even beat on it heavy to see what it would do downshifting to gain speed and no issues?
I have gotten no CEL lights or codes and everything else is working just fine.