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?

 

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.

 

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.

 

Replace your injectors and o-rings with later model injectors. Dflintstone did a great documentary on using Volvo injectors.

 

Sorry, I didn't notice that the OP has a Renix, which I know nothing about. Ignore my post, please.

 

You guys with all that new-fangled bull**** need to leave the Renix stuff to the Renix Brigade!! LOL!!

 

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'.

 

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/

 

I'll try not to let it happen again. (Tucks tail between legs and goes to lay by dish...)

 

LOL. You posted that just as my Dobie let loose with a stinky fart right near my PC!!!

 

LOL! Poor cruiser!

 

She looks innocent enough...

 

Very beautiful dog!

 

Thanks. She's a protective sweetheart. Follows me everywhere. Loves the Comanche!!! And... loves beer.

 

A friend of mine had a dog like that. If he was outside and left an open beer sitting for a minute, the dog would knock it over and lap it up as it poured out of the can!