Got another one! Project: PolarXJ - Page 2

6DoF · 09-30-2021, 09:18 AM

head on! had to pull an intake off my shelf as there was a chunk missing from the one on the jeep ... wtf? whatever, had the parts.

she runs!! ... i mean, she ran ... fired up pretty decent, everything sounds smooth, but idled at 2000Rs. cleaned TB, sealed to intake better, swapped IAC with a used one from the shelf ... same, didn't seam to be adjusting it, then it kinda was and idled lower. fired up next day to flush the coolant and drove it out of the garage. after the flush she wouldn't start to save her life. pulled the codes and had a P0122 and P0123, throttle position sensor High and TPS low. swap the TPS with used from shelf, same, unplugged, same. cranks n cranks and FINALLY runs but idles rough, pulled back into the garage. next day after everything is dry and she spins but no hint of fire. still has the TPS low code.

jeep sat for 2 years not running after the head cracked n overheated bad. there also seams to be at least one stuck ring, so hopefully that works itself out too.

need to probe the TPS wires and sensor sweep ... anyone got any other ideas for me to look at? i really hope i'm not chasing some randomly chewed mouse wire

Sir Sam · 09-30-2021, 02:55 PM

Quote:

Originally Posted by nblehm

I got it for free so

I will give you $30 and pick it up.

Sir Sam · 09-30-2021, 02:57 PM

Have fuel pressure?

6DoF · 09-30-2021, 09:26 PM

I have 44psi fuel pressure quickly, and it holds there even off just fine.

Back probed the TPS, that all seams to be perfectly in spec and functional.

Unplugged n re-seated the computer plugs, blew em out, now i also get another code for high tach signal. But the high tps code is gone, still have the low tps code.

Pulled the coil pack n jumpered ground to the plugs, they all have spark.

Tried to do a compression test, but i need a long thread adapter ... With the o-ring off i can only get one thread to take. Still tried it n got like 30-50psi. So that worries me. I did have a tiny bit of puffing smoke last it ran after the new head from the oil cap, but just a wiff n nit enough to really even feel. Poured oil in the cylinders n rocked the crank a bunch, they are all holding the oil well n not draining down quick ... We'll see in the am.

6DoF · 09-30-2021, 09:27 PM

Oh yeah ... Also now realized there is coolant leaking out rather quickly between the block n bell. Probably why it Lost coolant n overheated to start with

Sir Sam · 10-01-2021, 10:20 AM

Quote:

Originally Posted by 6DoF

Oh yeah ... Also now realized there is coolant leaking out rather quickly between the block n bell. Probably why it Lost coolant n overheated to start with

That sucks, there is a freeze plug back there that you have to pull the trans to replace.

xj_man_646 · 10-01-2021, 11:10 AM

Was going to say the same thing

6DoF · 10-01-2021, 11:55 AM

not the worst job ever ... but not the best for sure ...

6DoF · 10-01-2021, 12:19 PM

damnit! i wanna get back to the '55 ... i'm debating shoving this XJ outside for a while n get back to it when i can bring it into the shop next to the 55. you know, once the body n 12v are final bolted to the chassis.

Cobound · 10-01-2021, 12:40 PM

'55 vote here

6DoF · 10-03-2021, 06:56 PM

shoved it out and actually brought my GMC in

wife might have convinced me to get the XJ back inside though and get it on the road for winter like i wanted. knock more off the to-do list first.

Cobound · 10-04-2021, 11:56 AM

Yeah, maybe you can get the realistic one done first, then move on to the long term. Dammit, wives are so damn practical

6DoF · 10-04-2021, 12:28 PM

well ... buying another XJ tonight. this **** is a slippery slope!!

2000 rusted to **** beater with a blown 4.0 ... it's a 5spd, says new clutch, has a puck/shackle lift, front rock bumper, and decent wheels i could use. $675

now to make sure i get everything i need for a manual swap before scrapping the shell ASAP

Cobound · 10-04-2021, 01:22 PM

Oh, slippery slope...just ask Sam

I went down that route as well, quickly got out of it, my HOA does not approve

Nor does my wife, or my free time calendar

6DoF · 10-04-2021, 02:48 PM

****ing FB went down and took messenger with it ... i have his address, but we never set up a time! he's 2h away, do i just get the trailer n roll hoping he's there when i show up?

Cobound · 10-04-2021, 07:19 PM

DAYUM!!!!

FB struck a hard chord!!!

So, what did you do?

6DoF · 10-05-2021, 08:50 AM

no way i was doing a 4h drive without knowing he'd be there ... FaceCrack came back after dinner and we hashed it out, going up tonight from work. since i had the extra day i was able to load up n bring the trailer to work to save an hour this afternoon too.

Cobound · 10-05-2021, 03:12 PM

Nice, good plan, man!

6DoF · 10-07-2021, 08:40 AM

got it! this thing is suuuuuccchhhh a pile of sh!t!! everything sux but the few parts i need, so game on though. even had all new sensors to try and make mine run again!

so the "motor blew up" was him windowing the block with the #1 and #6 rods

https://i.imgur.com/xiok40Z.mp4

Cobound · 10-07-2021, 06:30 PM

Sticker give you that idea?

09-30-2021, 09:18 AM	#21
6DoF AKA: jeepnski Join Date: Sep 2002 Location: Pittsburgh, PA Posts: 16,842	head on! had to pull an intake off my shelf as there was a chunk missing from the one on the jeep ... wtf? whatever, had the parts. she runs!! ... i mean, she ran ... fired up pretty decent, everything sounds smooth, but idled at 2000Rs. cleaned TB, sealed to intake better, swapped IAC with a used one from the shelf ... same, didn't seam to be adjusting it, then it kinda was and idled lower. fired up next day to flush the coolant and drove it out of the garage. after the flush she wouldn't start to save her life. pulled the codes and had a P0122 and P0123, throttle position sensor High and TPS low. swap the TPS with used from shelf, same, unplugged, same. cranks n cranks and FINALLY runs but idles rough, pulled back into the garage. next day after everything is dry and she spins but no hint of fire. still has the TPS low code. jeep sat for 2 years not running after the head cracked n overheated bad. there also seams to be at least one stuck ring, so hopefully that works itself out too. need to probe the TPS wires and sensor sweep ... anyone got any other ideas for me to look at? i really hope i'm not chasing some randomly chewed mouse wire __________________ ...................................___ .................. ________\|\|___\____ ..;.;;.:;:;.,;..;\|/_(O)\______ /_(O)\|

09-30-2021, 09:26 PM	#24
6DoF AKA: jeepnski Join Date: Sep 2002 Location: Pittsburgh, PA Posts: 16,842	I have 44psi fuel pressure quickly, and it holds there even off just fine. Back probed the TPS, that all seams to be perfectly in spec and functional. Unplugged n re-seated the computer plugs, blew em out, now i also get another code for high tach signal. But the high tps code is gone, still have the low tps code. Pulled the coil pack n jumpered ground to the plugs, they all have spark. Tried to do a compression test, but i need a long thread adapter ... With the o-ring off i can only get one thread to take. Still tried it n got like 30-50psi. So that worries me. I did have a tiny bit of puffing smoke last it ran after the new head from the oil cap, but just a wiff n nit enough to really even feel. Poured oil in the cylinders n rocked the crank a bunch, they are all holding the oil well n not draining down quick ... We'll see in the am. __________________ ...................................___ .................. ________\|\|___\____ ..;.;;.:;:;.,;..;\|/_(O)\______ /_(O)\|

09-30-2021, 09:27 PM	#25
6DoF AKA: jeepnski Join Date: Sep 2002 Location: Pittsburgh, PA Posts: 16,842	Oh yeah ... Also now realized there is coolant leaking out rather quickly between the block n bell. Probably why it Lost coolant n overheated to start with __________________ ...................................___ .................. ________\|\|___\____ ..;.;;.:;:;.,;..;\|/_(O)\______ /_(O)\|

10-01-2021, 11:10 AM	#27
xj_man_646 Senior Member Join Date: Oct 2004 Location: MN Posts: 27,689	Was going to say the same thing __________________ - James I like diesels

10-01-2021, 11:55 AM	#28
6DoF AKA: jeepnski Join Date: Sep 2002 Location: Pittsburgh, PA Posts: 16,842	not the worst job ever ... but not the best for sure ... __________________ ...................................___ .................. ________\|\|___\____ ..;.;;.:;:;.,;..;\|/_(O)\______ /_(O)\|

09-30-2021, 02:57 PM	#23
Sir Sam Working Mother Join Date: Mar 2004 Posts: 19,914	Have fuel pressure?

10-01-2021, 12:19 PM	#29
6DoF AKA: jeepnski Join Date: Sep 2002 Location: Pittsburgh, PA Posts: 16,842	damnit! i wanna get back to the '55 ... i'm debating shoving this XJ outside for a while n get back to it when i can bring it into the shop next to the 55. you know, once the body n 12v are final bolted to the chassis. __________________ ...................................___ .................. ________\|\|___\____ ..;.;;.:;:;.,;..;\|/_(O)\______ /_(O)\|

10-01-2021, 12:40 PM	#30
Cobound - The Don - Join Date: Sep 2002 Location: MN Posts: 49,136	'55 vote here __________________ To each his own. Not all those who wander are lost. The great irony - triggered snowflakes accusing triggered snowflakes of being triggered snowflakes

10-03-2021, 06:56 PM	#31
6DoF AKA: jeepnski Join Date: Sep 2002 Location: Pittsburgh, PA Posts: 16,842	shoved it out and actually brought my GMC in wife might have convinced me to get the XJ back inside though and get it on the road for winter like i wanted. knock more off the to-do list first. __________________ ...................................___ .................. ________\|\|___\____ ..;.;;.:;:;.,;..;\|/_(O)\______ /_(O)\|

10-04-2021, 11:56 AM	#32
Cobound - The Don - Join Date: Sep 2002 Location: MN Posts: 49,136	Yeah, maybe you can get the realistic one done first, then move on to the long term. Dammit, wives are so damn practical __________________ To each his own. Not all those who wander are lost. The great irony - triggered snowflakes accusing triggered snowflakes of being triggered snowflakes

10-04-2021, 12:28 PM	#33
6DoF AKA: jeepnski Join Date: Sep 2002 Location: Pittsburgh, PA Posts: 16,842	well ... buying another XJ tonight. this ** is a slippery slope!! 2000 rusted to ** beater with a blown 4.0 ... it's a 5spd, says new clutch, has a puck/shackle lift, front rock bumper, and decent wheels i could use. $675 now to make sure i get everything i need for a manual swap before scrapping the shell ASAP __________________ ...................................___ .................. ________\|\|___\____ ..;.;;.:;:;.,;..;\|/_(O)\______ /_(O)\| Last edited by 6DoF; 10-04-2021 at 12:55 PM.

10-04-2021, 01:22 PM	#34
Cobound - The Don - Join Date: Sep 2002 Location: MN Posts: 49,136	Oh, slippery slope...just ask Sam I went down that route as well, quickly got out of it, my HOA does not approve Nor does my wife, or my free time calendar __________________ To each his own. Not all those who wander are lost. The great irony - triggered snowflakes accusing triggered snowflakes of being triggered snowflakes

10-04-2021, 02:48 PM	#35
6DoF AKA: jeepnski Join Date: Sep 2002 Location: Pittsburgh, PA Posts: 16,842	****ing FB went down and took messenger with it ... i have his address, but we never set up a time! he's 2h away, do i just get the trailer n roll hoping he's there when i show up? __________________ ...................................___ .................. ________\|\|___\____ ..;.;;.:;:;.,;..;\|/_(O)\______ /_(O)\|

10-04-2021, 07:19 PM	#36
Cobound - The Don - Join Date: Sep 2002 Location: MN Posts: 49,136	DAYUM!!!! FB struck a hard chord!!! So, what did you do? __________________ To each his own. Not all those who wander are lost. The great irony - triggered snowflakes accusing triggered snowflakes of being triggered snowflakes

10-05-2021, 08:50 AM	#37
6DoF AKA: jeepnski Join Date: Sep 2002 Location: Pittsburgh, PA Posts: 16,842	no way i was doing a 4h drive without knowing he'd be there ... FaceCrack came back after dinner and we hashed it out, going up tonight from work. since i had the extra day i was able to load up n bring the trailer to work to save an hour this afternoon too. __________________ ...................................___ .................. ________\|\|___\____ ..;.;;.:;:;.,;..;\|/_(O)\______ /_(O)\|

10-05-2021, 03:12 PM	#38
Cobound - The Don - Join Date: Sep 2002 Location: MN Posts: 49,136	Nice, good plan, man! __________________ To each his own. Not all those who wander are lost. The great irony - triggered snowflakes accusing triggered snowflakes of being triggered snowflakes

10-07-2021, 08:40 AM	#39
6DoF AKA: jeepnski Join Date: Sep 2002 Location: Pittsburgh, PA Posts: 16,842	got it! this thing is suuuuuccchhhh a pile of sh!t!! everything sux but the few parts i need, so game on though. even had all new sensors to try and make mine run again! so the "motor blew up" was him windowing the block with the #1 and #6 rods https://i.imgur.com/xiok40Z.mp4 __________________ ...................................___ .................. ________\|\|___\____ ..;.;;.:;:;.,;..;\|/_(O)\______ /_(O)\| Last edited by 6DoF; 10-07-2021 at 08:43 AM.

10-07-2021, 06:30 PM	#40
Cobound - The Don - Join Date: Sep 2002 Location: MN Posts: 49,136	Sticker give you that idea? __________________ To each his own. Not all those who wander are lost. The great irony - triggered snowflakes accusing triggered snowflakes of being triggered snowflakes