Jump This
Just another minion!
- Location
- Borrego Springs Ca.
Can I replace a Renix era tank with an HO tank (96 into a 90) using the later model pump and sensors?
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Gas tank switch
- Thread starter Jump This
- Start date
- Location
- San Bruno, CA.
The tank is the same, pump is the same, and the plug for the sending unit is the same but the fuel guage won't work.
Jump This
Just another minion!
- Location
- Borrego Springs Ca.
Is there a way to get the guage to work using the new set up?
Replace the gauge with a later model one?
Replace the gauge with a later model one?
- Location
- Rainy side of Washington
91 through 95 will drop in, assuming 4.0L engine with MPFI it'll work great. Only problem will be that your fuel gauge will be reversed (someone did a writeup on fixing this by swapping the fuel gauge in the cluster as well, can't find it atm.)
96 is a bastard year, it's the first year of the returnless fuel system and the gauge sender is wonky as hell. More trouble than it's worth to swap it in. Aim for 91-95.
96 is a bastard year, it's the first year of the returnless fuel system and the gauge sender is wonky as hell. More trouble than it's worth to swap it in. Aim for 91-95.
scottmcneal
NAXJA Forum User
- Location
- not here
Rick would the tank out of the 88 work? You know it had a 4 banger, but i think it is the same size pump..
- Location
- Rainy side of Washington
Nope.
4 banger TBI has a 15psi pump on RENIX, while 6cyl MPFI RENIX and 6cyl MPFI OBD-I are fairly close to (or exactly) compatible.
You could simply swap the pump over though, it's the only difference. Then the gauge will work right still.
4 banger TBI has a 15psi pump on RENIX, while 6cyl MPFI RENIX and 6cyl MPFI OBD-I are fairly close to (or exactly) compatible.
You could simply swap the pump over though, it's the only difference. Then the gauge will work right still.
2stix
NAXJA Forum User
- Location
- fallbrook Ca.
rick, why the swap? i actually prefer the location of the pump/sender on the renix years as you can get to them without removing the tank or cutting a hole in the floor. if you need a tank from a renix, let me know.
All the tanks themselves from 84 through 95 are interchangeable. In fact, I have a brand new one in my shop somebody can have for a few bucks. It is the sending units that changed. They went to the internal pump in 87. As noted the pumps were different, but you can just replace the sending unit or the pump. The renix pump puts out about 65# by the way. Be sure to use a new o ring gasket or it will probably leak.
- Location
- Rainy side of Washington
84 through 96 iirc, and some of the older tanks have a baffle in them to reduce them to 13 gallons. Otherwise you're 100% correct.
2stix
NAXJA Forum User
- Location
- fallbrook Ca.
do you know what the newer pumps put out. i will have to check my preasure now. the replacement pump i installed looked differant than the original i removed. hope i didnt install a wrong pump.
2stix
NAXJA Forum User
- Location
- fallbrook Ca.
is that 31 psi for all? i need to know what psi the renix motor needs. thanks. sorry rick for the hijack.
Jump This
Just another minion!
- Location
- Borrego Springs Ca.
Great information here.
This is not for me, I gave my old red Cherokee to the daughter of a good friend of mine and they are having problems with the sending unit. Since I have the tank out of my '96 I was looking to see if a quick swap would work. The tank that is in it now has a nice size dent in it too *(as well as the problem with building up fuel pressure in the old Renix system tanks.)
This is not for me, I gave my old red Cherokee to the daughter of a good friend of mine and they are having problems with the sending unit. Since I have the tank out of my '96 I was looking to see if a quick swap would work. The tank that is in it now has a nice size dent in it too *(as well as the problem with building up fuel pressure in the old Renix system tanks.)
31 psi is the only value listed in my Chiltons that goes to 98.
joe_peters
NAXJA Forum User
- Location
- Grants Pass, OryGun
Chilton, Haynes = toilet paper.
Renix to 95, 31 psi with vacuum to the regulator, 39 psi without vacuum.
96+ is 49 psi + - 5 psi.
The Renix pump is capable of putting out 95+ psi.
Some one did post up about modifying the gauges, to read correctly, or your other option is an Autometer gauge for the reverse reading Chrysler.
Renix to 95, 31 psi with vacuum to the regulator, 39 psi without vacuum.
96+ is 49 psi + - 5 psi.
The Renix pump is capable of putting out 95+ psi.
Some one did post up about modifying the gauges, to read correctly, or your other option is an Autometer gauge for the reverse reading Chrysler.
