Four Corners BS thread!!
CF Veteran
Joined: Jun 2009
Posts: 3,071
Likes: 0
From: Denver, CO
Year: 1997
Model: Cherokee
Engine: 4.0
Thread Starter
CF Veteran
Joined: Jan 2009
Posts: 3,513
Likes: 0
From: Aurora
Year: 1997 XJ
Model: Cherokee
Engine: 4.0 HO JASPER MOTOR
and you should have stayed at a hilton last night just sayin lol
CF Veteran
Joined: Apr 2008
Posts: 13,952
Likes: 17
Model: Cherokee
thanks!
Paris?
Dude! I own a Jeep....need I say more?
Paris?
Dude! I own a Jeep....need I say more?
Thread Starter
CF Veteran
Joined: Jan 2009
Posts: 3,513
Likes: 0
From: Aurora
Year: 1997 XJ
Model: Cherokee
Engine: 4.0 HO JASPER MOTOR
CF Veteran
Joined: Apr 2008
Posts: 1,052
Likes: 2
From: Lakewood, Colorado
Year: 1990 2dr base
Model: Cherokee
Engine: 4.0L
Thread Starter
CF Veteran
Joined: Jan 2009
Posts: 3,513
Likes: 0
From: Aurora
Year: 1997 XJ
Model: Cherokee
Engine: 4.0 HO JASPER MOTOR
Member
Joined: Nov 2009
Posts: 224
Likes: 0
From: Provo UT
Year: 89 2 door
Model: Cherokee
Engine: 4.0
is it possible that CF is blocking my messages from getting to anyone cause ive been posting some threads lateley and haven't gotten a single reply where i thought i would
Do you hear banjos?
Joined: Apr 2008
Posts: 9,644
Likes: 6
Model: Cherokee
Me too, but I try to tell myself we need as much as we can get ATM...it doesn't always work!! LOL!!
I can see this one...
CF Veteran
Joined: Apr 2008
Posts: 13,952
Likes: 17
Model: Cherokee
So after doing a little research, pouring over schematics and some very useful info from Brendan (www.ls1swap.com) I got the No Throttle issue resolved. Seems that if the PCM is powered up before the TAC Module, even by a millisecond, the PCM reports that the TAC is not communicating with the PCM. Clearing code while the engine is running allows the throttle to start functioning normally. A simple swap of 2 wires to allow the TAC to energize first cured the problem.
After checking the the wiring for the VSS for the umpteenth time I finally figured out that a VSS from a 97 or older GM simply won't work. The magnet in the VSS is much weaker and although I was getting a signal from the VSS to the PCM it wasn't what the PCM needed to see.
I picked up a new VSS and connector from the local parts house and surprise!!!!....it's a larger diameter than the '95 version. Since I'm a cheap S.O.B. I wasn't about to shell out more coin for another tail cone nor was I thrilled about buying another high dollar tap for 1 stinkin' hole.
My solution was to first determine the thread size, turns out to be a 22mm-1.5 which equals a 7/8-18. Sweet!! I figured I'd just buy a 7/8-18 bolt and booty fab a tap out of it. Wrong! Ever try to find a 7/8-18 bolt? They don't exist on my planet.
Hmmmm.....what to do, what to do? FZZZZZZZZZZZPLAT!! (That's the sound of a light bulb going on over my noggin, just like in the cartoons. ) chevy 3/4 ton tie-rod ends are 7/8-18! I threaded the new VSS into the jamb nut of my trail spare and it's a darn near perfect fit.
So I cut the TRE apart, weld a nut to it, cut a few grooves up the threads and bored out the tail cone on my drill press. The "tap" worked well in the soft aluminum and I had everything back together in no time last night.
Got up this AM and fired up the motor, turned on my speed-oh-meter (GPS for now) and slipped it into gear. drove around the neighborhood a little bit, seemed to shft just fine. Made my way to a road with a higher speed limit (45) and sped up and slowed down multiple times....shifted fine. So I cruise along at 40-45 and everything is working well, so it's time to really open it up. Yeah baby, I'm talking 55MPH here!!
I get to a stoplight and and make my gentle left turn and scan the road and gave the skinny peddle a tiny itsy-bitsty nudge.
Ho
Lee
****!
When I said tiny itsy-bitsty nudge I meant tiny itsy-bitsty nudge but based on the amount of time it took to exceed the posted speed limit (damn near 80mph) you'd think I put my foot through the floor. Jeebus H. Tap Dancin' Christ! This thing is a-freakin'-mazing. The available power is simply phenomenal!!
Wow! Just freakin' wow!!!
Still have a nasty sqeal coming from the front end and a video would be unbearable at this point. So far I've replaced the front bearing in the alternator, replaced the idler pully, pulled the tensioner pulley and cleaned/repacked the bearing in it, checked for proper belt and pulley alignment...still squeals like a fat chick on Free Donut Day at Krispy Kreme.
Frustrating
After checking the the wiring for the VSS for the umpteenth time I finally figured out that a VSS from a 97 or older GM simply won't work. The magnet in the VSS is much weaker and although I was getting a signal from the VSS to the PCM it wasn't what the PCM needed to see.
I picked up a new VSS and connector from the local parts house and surprise!!!!....it's a larger diameter than the '95 version. Since I'm a cheap S.O.B. I wasn't about to shell out more coin for another tail cone nor was I thrilled about buying another high dollar tap for 1 stinkin' hole.
My solution was to first determine the thread size, turns out to be a 22mm-1.5 which equals a 7/8-18. Sweet!! I figured I'd just buy a 7/8-18 bolt and booty fab a tap out of it. Wrong! Ever try to find a 7/8-18 bolt? They don't exist on my planet.
Hmmmm.....what to do, what to do? FZZZZZZZZZZZPLAT!! (That's the sound of a light bulb going on over my noggin, just like in the cartoons. ) chevy 3/4 ton tie-rod ends are 7/8-18! I threaded the new VSS into the jamb nut of my trail spare and it's a darn near perfect fit.
So I cut the TRE apart, weld a nut to it, cut a few grooves up the threads and bored out the tail cone on my drill press. The "tap" worked well in the soft aluminum and I had everything back together in no time last night.
Got up this AM and fired up the motor, turned on my speed-oh-meter (GPS for now) and slipped it into gear. drove around the neighborhood a little bit, seemed to shft just fine. Made my way to a road with a higher speed limit (45) and sped up and slowed down multiple times....shifted fine. So I cruise along at 40-45 and everything is working well, so it's time to really open it up. Yeah baby, I'm talking 55MPH here!!
I get to a stoplight and and make my gentle left turn and scan the road and gave the skinny peddle a tiny itsy-bitsty nudge.
Ho
Lee
****!
When I said tiny itsy-bitsty nudge I meant tiny itsy-bitsty nudge but based on the amount of time it took to exceed the posted speed limit (damn near 80mph) you'd think I put my foot through the floor. Jeebus H. Tap Dancin' Christ! This thing is a-freakin'-mazing. The available power is simply phenomenal!!
Wow! Just freakin' wow!!!
Still have a nasty sqeal coming from the front end and a video would be unbearable at this point. So far I've replaced the front bearing in the alternator, replaced the idler pully, pulled the tensioner pulley and cleaned/repacked the bearing in it, checked for proper belt and pulley alignment...still squeals like a fat chick on Free Donut Day at Krispy Kreme.
Frustrating
