99 jeep motor swap need help
#2332259
07/06/17 12:32 AM
07/06/17 12:32 AM
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Joined: Feb 2010
Posts: 404 IL us
ink
OP
mopar
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OP
mopar
Joined: Feb 2010
Posts: 404
IL us
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the motor in my 99 locked up,(4.0 coil pack) got a nice 50k mile replacement, 2004. the swap seemed to go pretty straight forward and simple, everything seemed to be the same except for a few sensors, oil pressure and motor temp, but it wont start. sounds like it wants to, swapped out the crank sensor on the trans bell housing with no diffrence, i reset the cam position sensor bringing the motor up to top dead center, and it drops in to the right position and still a no start. now when i turn cam sensor clockwise well out of position until it cant go no more up against the block it will start and run, but this is no where right, i got an idea what my next move is, but id like to hear any and all opinions before i proceed
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Re: 99 jeep motor swap need help
[Re: ink]
#2332309
07/06/17 02:21 AM
07/06/17 02:21 AM
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Joined: Mar 2003
Posts: 1,728 ST clair shores MI
moretoys
top fuel
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top fuel
Joined: Mar 2003
Posts: 1,728
ST clair shores MI
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Did you use the toothpick trick to line up the slot before dropping the cam sensor /oil pump drive into place? need a scan tool to read and learn crank /cam correlation. The cam sensor controls the injectors firing.
Last edited by moretoys; 07/06/17 02:22 AM.
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Re: 99 jeep motor swap need help
[Re: moretoys]
#2332706
07/06/17 07:36 PM
07/06/17 07:36 PM
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Joined: Feb 2010
Posts: 404 IL us
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OP
mopar
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OP
mopar
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Posts: 404
IL us
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yes, did the toothpick trick with no shortcuts, bringing the motor to top dead center on the compression stroke, even pulling the spark plug on the number one cylinder, and the cam sensor drops in the correct position, and still a no start, but again if i twist it clock wise until i cant go anymore and its up against the block, it will start. all i can think, somehow it jumped time. not looking forward to pulling the front of the motor to get to the timing chain. not i big deal just like to see if anyone else out there can tell me different. is it possible when im turning the cam sensor that far out of position that it would be giving the fuel ejectors fuel 100% all the time? or is something just out of time??????? any input is appreciated.
Last edited by ink; 07/06/17 07:37 PM.
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Re: 99 jeep motor swap need help
[Re: ink]
#2332887
07/07/17 01:53 AM
07/07/17 01:53 AM
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Joined: Aug 2003
Posts: 954 garnett kansas
rhad
super stock
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super stock
Joined: Aug 2003
Posts: 954
garnett kansas
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are you sure the plug wires are not off by one hole?
my ladder of success is missing some rungs
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Re: 99 jeep motor swap need help
[Re: ink]
#2333970
07/09/17 10:15 AM
07/09/17 10:15 AM
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Joined: Jan 2003
Posts: 8,032 Tulsa OK
Bad340fish
master
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master
Joined: Jan 2003
Posts: 8,032
Tulsa OK
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That is a simple 180* on and 180* off sensor. You might just need to move it around a few teeth until it will bolt in and run fine. There is two times I have had the cam sensor(out which is also a distributor on mine) on my 97 and both times it has been a PITA to get back in correctly. I know last time I had to abandon the procedure I found online because it didn't work.
68 Barracuda Formula S 340
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Re: 99 jeep motor swap need help
[Re: ink]
#2333971
07/09/17 10:16 AM
07/09/17 10:16 AM
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Joined: Jan 2003
Posts: 8,032 Tulsa OK
Bad340fish
master
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master
Joined: Jan 2003
Posts: 8,032
Tulsa OK
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Did you use the same flex plate or flywheel from the original motor?
68 Barracuda Formula S 340
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Re: 99 jeep motor swap need help
[Re: moretoys]
#2334348
07/09/17 09:57 PM
07/09/17 09:57 PM
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Joined: Feb 2010
Posts: 404 IL us
ink
OP
mopar
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OP
mopar
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Posts: 404
IL us
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The engine came out of same vehicle? guessing it is a grand cherokee.? The rear drive plate / flywheel is same part number 99 and 2004.as is the oil pump drive, the sensors are a different part number, but that is probably because the connectors changed.was this a 50,000 mile original engine or 50,000 miles on a rebuilt engine? move the oil pump drive 1 tooth and see what happens, see how it runs. cylinder #1 is the very front. its a 04 motor with 50 k original miles. when i researched (ebay) flywheel for a 99, i think it said it was compatible 96-01, thats what im going off of, the jeep i pulled the motor from was in an accident but i heard the motor run. so i have both vehicles the 99 and the donor jeep 04, so i have two of everything, and have swapped out the sensors and the connectors are the same, but i will take your advice and try moving it, a tooth if thats possible, i guess really you're not aliening the hole you but the toothpick in. and maybe i do my homework a little more before i start yanking stuff apart. again i thank all input. definitely getting closer.
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