A fire waiting to happen
10-29-2013, 04:46 PM
#1
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A fire waiting to happen
So after leaving my cherokee for about 2 weeks siting I decided to start her up... everything was good... start up, idling, pressed on gas, all the lights and my wipers... as I went to check the liquids under the hood I heard a hissing sound
Turns out that the first 3 injectors are leaking gas : eyes wide open :
Are the injectors screwed types? Or are the o rings gone? And not to sound like a cheap-o but can I put a gasket maker or silcone gasket to hold it for now?
Turns out that the first 3 injectors are leaking gas : eyes wide open :
Are the injectors screwed types? Or are the o rings gone? And not to sound like a cheap-o but can I put a gasket maker or silcone gasket to hold it for now?
10-29-2013, 08:01 PM
#2
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Year: 1998
Model: Cherokee
Engine: 4.0
Either bad O-rings or injectors...probably the O-rings between the fuel rail and injectors. They are inexpensive at any parts store, and pretty easy to change. Gasket maker? Umm, no.
10-29-2013, 08:38 PM
#3
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Year: 1996 Two Door Wagoneer
Model: Cherokee
Engine: 4.0L
Had same experience...
Your 88 has the Renix injection system. It was designed and installed while AMC was owned by Renault, a French company. "Renix" is French for: "Unexpected Big FIRE".
Not really. It stands for Renault/Bendix. And they did a pretty good job for the day. But after a number of years the injectors leak. Not so much at their O rings, but at their top where their parts assemble: plastic to metal.
I had to disconnect one, whittle a wood plug to stop the fuel in rail from coming to that injector, reinstall the rail, and drive home 200 miles on 5 cylinders.
This was on my 90 Laredo XJ.
Don't even get me going on the 86 XJ which I bought new. Whole other can of worms.
Not really. It stands for Renault/Bendix. And they did a pretty good job for the day. But after a number of years the injectors leak. Not so much at their O rings, but at their top where their parts assemble: plastic to metal.
I had to disconnect one, whittle a wood plug to stop the fuel in rail from coming to that injector, reinstall the rail, and drive home 200 miles on 5 cylinders.
This was on my 90 Laredo XJ.
Don't even get me going on the 86 XJ which I bought new. Whole other can of worms.
Last edited by HappyTrails; 10-29-2013 at 08:42 PM.
10-29-2013, 09:01 PM
#4
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Replace your injectors and o-rings with later model injectors. Dflintstone did a great documentary on using Volvo injectors.
10-29-2013, 09:04 PM
#6
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10-29-2013, 09:33 PM
#7
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Year: 1989
Model: Cherokee
Engine: 4.0
If you can't find the Volvo injectors you can also run the Ford 3.8 V6 injectors that were used in the older Taurus's. Easy to spot because they are yellow in color. It's what I run in my 89'.
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10-29-2013, 09:54 PM
#8
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Year: 90,84
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Engine: 4.0,2.5
Way back, maybe 98 I was working on what is now my Jeep for the PO. I thought the leak was O rings. In the process of changing some, more leaks started. The more I messed with it the more it leaked!
You just gotta can those stock injectors. I got a little lucky with "as is" 746's for like $36 shipped, off Ebay. I couple were sticky, back flushing seems to have worked. There is more here>
https://www.cherokeeforum.com/f2/199...r-swap-163105/
You just gotta can those stock injectors. I got a little lucky with "as is" 746's for like $36 shipped, off Ebay. I couple were sticky, back flushing seems to have worked. There is more here>
https://www.cherokeeforum.com/f2/199...r-swap-163105/
Last edited by DFlintstone; 10-29-2013 at 09:56 PM.
10-29-2013, 09:55 PM
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10-29-2013, 09:57 PM
#10
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10-29-2013, 10:00 PM
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10-29-2013, 10:02 PM
#12
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She looks innocent enough...
10-29-2013, 10:08 PM
#14
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Thanks. She's a protective sweetheart. Follows me everywhere. Loves the Comanche!!! And... loves beer.
10-29-2013, 10:11 PM
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Year: 1998
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