Renix off idle stumble.

[RNMedic]

I'm gonne replace the egr with a spare sometime in the next couple of days, will let you know.

 

[PhotographerMike]

Sounds like my '89. Simple fix once I discovered I had the EGR transducer in backwards . . .

Runs fine now.

 

[RNMedic]

well my spare manifold was missing the EGR valve, so I will look for one this week.

 

[Shorty]

just block it off (temporarily) with a sheet of tin and see if it solves anything-- it's free and will steer you in the correct direction.

 

[PhotographerMike]

Sounds like my '89. Simple fix once I discovered I had the EGR transducer in backwards . . . .

The Transducer is the round plastic thing. I had the (labeled) inlet & out. tubes swapped.

 

[RNMedic]

okay disconnected and plugged the vacuum line no miss but the idle was higher, around 1200 rpm, so can I remove it? or will it cause problems?? John

 

[Shorty]

legality and enviro-correctness aside, the 4.0l will run and operate fine without the EGR valve. It was designed to aid in reducing combustion chamber temps to reduce oxides of nitrogen formation, but the "mighty" 4.0l engine is such a low compression, low RPM engine to begin with-- you'll never see exagerated combustion chamber temps to begin with. I've heard many stories of Renix era engines passing smog sniffers with disabled and removed EGR valves.

I would not condone the removal of any emissions related items as a permanant fix, but as a "temporary" bypass to allow you to get a new one, you shouldn't have any negative affercts from running without it.

 

[RNMedic]

that is what I figgered, a new one is 80 to 100 bucks. John

 

[Shorty]

there are many definitions on "temporary"

:wave:

 

[RNMedic]

yeah but I want to keep it running well.

 

[Shorty]

the 4.0l will run and operate fine without the EGR valve. It was designed to aid in reducing combustion chamber temps to reduce oxides of nitrogen formation, but the "mighty" 4.0l engine is such a low compression, low RPM engine to begin with-- you'll never see exagerated combustion chamber temps to begin with.

 

[BigSky89XJ]

I purchased a new EGR valve when I first bought my '89 XJ. Replacing it solved 2 problems. It cured the hesitation/stalling and eliminated a vaccum leak. It was the OEM EGR so I guess I couldn't really complain. Paying the $90 kinda sucked though.

 

[61scout80]

what is the latest? i have a similar problem.