Hi ,I'm thinking about fitting a catch can to my 2019 grand cherokee diesel jeep,have any jeep owners done this and if so which can did you fit and are you happy with the result any info would be good thanks Mike h
yobarr said
03:19 PM Jun 23, 2023
mike g g wrote:
Hi ,I'm thinking about fitting a catch can to my 2019 grand cherokee diesel jeep,have any jeep owners done this and if so which can did you fit and are you happy with the result any info would be good thanks Mike h
Without getting too involved in the legalities, but apparent benefits of doing so, I believe that a Wise Man once was heard to say. "Forget the catch can. Explore 'Delete EGR valve' option instead". Cheers
P.S Sergeant Schultz syndrome "I know nothing. Nothing!"
-- Edited by yobarr on Friday 23rd of June 2023 03:23:18 PM
deverall11 said
05:10 PM Jun 23, 2023
Catch can and EGR valve are too completely separate items and are in no way linked to each other.
EGR is to deal with pollution at low revs by recirculating exhaust gases, catch can is to catch the
crankcase fumes and remove as much oils as possible before going to the inlet.
Look around on various Jeep forums and see what the train of thoughts is amongst Jeep owners
like yours.
I own a 200 series diesel Landcruiser which are notorious for ingesting crankcase fumes which in
turn leave oil in the intercooler. A catch can deals with that. The diesel engine in the Landcruiser
has the PCV valve right above the timing chain. This results in excessive oil passing thru the PCV
valve as it is splashed up and ends up in the intercooler. Plenty of discussion on the LCOOL
forum which is now defunct.
rgren2 said
06:28 PM Jun 23, 2023
Lotsa stuff on the Patrol4x4 forum too.
yobarr said
07:46 PM Jun 23, 2023
deverall11 wrote:
Catch can and EGR valve are too completely separate items and are in no way linked to each other. EGR is to deal with pollution at low revs by recirculating exhaust gases, catch can is to catch the crankcase fumes and remove as much oils as possible before going to the inlet. Look around on various Jeep forums and see what the train of thoughts is amongst Jeep owners like yours. I own a 200 series diesel Landcruiser which are notorious for ingesting crankcase fumes which in turn leave oil in the intercooler. A catch can deals with that. The diesel engine in the Landcruiser has the PCV valve right above the timing chain. This results in excessive oil passing thru the PCV valve as it is splashed up and ends up in the intercooler. Plenty of discussion on the LCOOL forum which is now defunct.
Its the recirculated exhaust gases that contaminate the oil contained in the crankcase fumes, causing things like this. According to a several experienced mechanics removal of these exhaust gases minimises this contamination. Other benefits are improved economy and lower engine temps. With an EGR in place you are effectively forcing an engine to consume its own waste! Think about that. Cheers
EGR's were brought in as a band aid measure to try and show a reduction in emissions. Deleting the EGR actually improves fuel economy. Improved fuel economy equates to reduced emissions...
yobarr said
09:02 PM Jun 23, 2023
BarneyBDB wrote:
EGR's were brought in as a band aid measure to try and show a reduction in emissions. Deleting the EGR actually improves fuel economy. Improved fuel economy equates to reduced emissions...
Barney, there is far too much thinking involved here for the "Climate change" brigade to comprehend. Cheers
BarneyBDB said
09:40 PM Jun 23, 2023
Sorry mate, sometimes I just cannot resist the urge....
Les_B said
07:38 AM Jun 24, 2023
I really cant believe what I am reading here - all the guys commenting here would be jumping on anyone towing with a dual cab Ute but in the same breath are telling them to break the law and make there vehicle unroadworthy and un incurable . As I said youre all totally unbelievable.
deverall11 said
07:56 AM Jun 24, 2023
yobarr wrote:
deverall11 wrote:
...
Its the recirculated exhaust gases that contaminate the oil contained in the crankcase fumes, causing things like this. According to a several experienced mechanics removal of these exhaust gases minimises this contamination. Other benefits are improved economy and lower engine temps. With an EGR in place you are effectively forcing an engine to consume its own waste! Think about that. Cheers
How does exhaust gases mix with crankcase fumes? Crankcase fumes come from the crankcase hence PCV. EGR deals with
exhaust gases which mix with diesel fuel. On petrol engines the PCV pipe feeds into the inlet manifold.
-- Edited by deverall11 on Saturday 24th of June 2023 04:51:10 PM
Jaahn said
09:02 AM Jun 24, 2023
Hmm a lot of half truths mixed together to make 1/2x1/2 = 1/4 truth ha ha !!
Interesting to see how some people hate "reduced emissions" and "climate change" and believe in removing all the improvements in new vehicles. Why do they buy them ???? There must be some old 1960s 4WDs still around somewhere to be perfect for towing that big van.
Jaahn
vince56 said
03:22 PM Jun 27, 2023
I have a 200 LC and just fitted a Catch Can, from all the info I have read a couple of hundred bucks and an hour to fit it is a no-brainer.
Just like the no-brainer of Australia saving the world by changing to renewables whilst China builds another 2000+ coal fired power plants over the next few years and rolls in the lovely cheap power. And so it goes for India, Russia etc etc etc....
Without getting too involved in the legalities, but apparent benefits of doing so, I believe that a Wise Man once was heard to say. "Forget the catch can. Explore 'Delete EGR valve' option instead". Cheers
P.S Sergeant Schultz syndrome "I know nothing. Nothing!"
-- Edited by yobarr on Friday 23rd of June 2023 03:23:18 PM
EGR is to deal with pollution at low revs by recirculating exhaust gases, catch can is to catch the
crankcase fumes and remove as much oils as possible before going to the inlet.
Look around on various Jeep forums and see what the train of thoughts is amongst Jeep owners
like yours.
I own a 200 series diesel Landcruiser which are notorious for ingesting crankcase fumes which in
turn leave oil in the intercooler. A catch can deals with that. The diesel engine in the Landcruiser
has the PCV valve right above the timing chain. This results in excessive oil passing thru the PCV
valve as it is splashed up and ends up in the intercooler. Plenty of discussion on the LCOOL
forum which is now defunct.
Lotsa stuff on the Patrol4x4 forum too.
Its the recirculated exhaust gases that contaminate the oil contained in the crankcase fumes, causing things like this. According to a several experienced mechanics removal of these exhaust gases minimises this contamination. Other benefits are improved economy and lower engine temps. With an EGR in place you are effectively forcing an engine to consume its own waste! Think about that. Cheers
Barney, there is far too much thinking involved here for the "Climate change" brigade to comprehend. Cheers
How does exhaust gases mix with crankcase fumes? Crankcase fumes come from the crankcase hence PCV. EGR deals with
exhaust gases which mix with diesel fuel. On petrol engines the PCV pipe feeds into the inlet manifold.
-- Edited by deverall11 on Saturday 24th of June 2023 04:51:10 PM
Interesting to see how some people hate "reduced emissions" and "climate change" and believe in removing all the improvements in new vehicles. Why do they buy them ???? There must be some old 1960s 4WDs still around somewhere to be perfect for towing that big van.
Jaahn
Just like the no-brainer of Australia saving the world by changing to renewables whilst China builds another 2000+ coal fired power plants over the next few years and rolls in the lovely cheap power. And so it goes for India, Russia etc etc etc....