renix problems!!! new to the fourm
#106
::CF Moderator::
Join Date: Aug 2011
Location: Prescott, Az
Posts: 43,971
Received 1,562 Likes
on
1,266 Posts
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Only 2 places you can lose pressure while sitting for a while. Either it bleeds back to the tank or dribbles out of injector(s) that don't seat well.
#107
Junior Member
Thread Starter
Join Date: Jun 2014
Location: wheatridge, colorado!!!
Posts: 80
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1989
Model: Cherokee
Engine: 4.0
hey I'm back lol... Ok I feel like this jeep is just wierd.... Short story, went to go for emissions again... Take the freeway get there pull in, let the guys do there thing, they get it on the dyno and it dies.... Won't start over, all electricals on, I can't remember if I heard the starter but anyways they push it off and leave it for me to deal with, I check my wires, uplug coil and plug it back in. Walaa my jeep starts, WTH is going on!
#108
::CF Moderator::
Join Date: Aug 2011
Location: Prescott, Az
Posts: 43,971
Received 1,562 Likes
on
1,266 Posts
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
hey I'm back lol... Ok I feel like this jeep is just wierd.... Short story, went to go for emissions again... Take the freeway get there pull in, let the guys do there thing, they get it on the dyno and it dies.... Won't start over, all electricals on, I can't remember if I heard the starter but anyways they push it off and leave it for me to deal with, I check my wires, uplug coil and plug it back in. Walaa my jeep starts, WTH is going on!
ALL of the relays should be removed, the terminals wire-brushed until shiny, and the receptacles sprayed out with contact cleaner. Then plug them back in. I do this on every Renix Jeep I purchase or work on for someone else.
Revised 07/23/2012
#109
CF Veteran
Join Date: Aug 2011
Location: Nor-Cal Coast
Posts: 10,489
Likes: 0
Received 18 Likes
on
18 Posts
Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
O-fer-christs-sake. I don't f'n believe it. We got this far without checking the CPS? (It's a common cause of random dieing, and can be checked in the time it takes to tie your shoes!)
Anyone with an 87 to 90 Renix Jeep has two or three minutes to see that their
CPS is putting out at least .35 AC volts. I don't mean to come off rude, but if you can't connect a meter and turn the key, we may not be much help.
AC voltage CPS test; Small clips on the meter leads really helps. (you need contact with those little pins while it cranks)
Unplug the connector at the back of the manifold with wires going down to the bell-housing/cps. (it's a three wire plug, with only two wires)
Probe the two wires to the cps with a digital meter set on AC volts. (a 200 scale on mine).
Crank the engine and note the voltage. (jump it if your battery is low). Although .35 might work, I'd consider changing mine if it were that low. .4 to .8 is more like it.
Anyone with an 87 to 90 Renix Jeep has two or three minutes to see that their
CPS is putting out at least .35 AC volts. I don't mean to come off rude, but if you can't connect a meter and turn the key, we may not be much help.
AC voltage CPS test; Small clips on the meter leads really helps. (you need contact with those little pins while it cranks)
Unplug the connector at the back of the manifold with wires going down to the bell-housing/cps. (it's a three wire plug, with only two wires)
Probe the two wires to the cps with a digital meter set on AC volts. (a 200 scale on mine).
Crank the engine and note the voltage. (jump it if your battery is low). Although .35 might work, I'd consider changing mine if it were that low. .4 to .8 is more like it.
#110
Junior Member
Thread Starter
Join Date: Jun 2014
Location: wheatridge, colorado!!!
Posts: 80
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1989
Model: Cherokee
Engine: 4.0
lol I know its late but thanks again for all your help, my jeep is good to go!! I'll be replacing the cps and tps here very shortly, but I now have plates and she's running great!!! Now for a transfer case rebuild and I'll have 4x4!
#112
Junior Member
Thread Starter
Join Date: Jun 2014
Location: wheatridge, colorado!!!
Posts: 80
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1989
Model: Cherokee
Engine: 4.0
ofcourse, so my master cylinder was bad, and the adjusters in the drums, that was brakes.... Cps is causing my no start every so often, the butterfly was off some and all I changed was the iac
Thread
Thread Starter
Forum
Replies
Last Post
Psiegrist1
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
34
03-17-2022 02:15 PM
Jeepy11
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
2
09-03-2015 09:32 AM
jmarzo
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
3
09-02-2015 08:29 PM
Currently Active Users Viewing This Thread: 2 (0 members and 2 guests)