Hi, I have a problem on my 1998 Cherokee XJ AMC 2.5 petrol. I replaced the vacuum ball with a larger one because I lost it during a trip went off-road the car ran well for a very short time and at a certain point a lot of oil leaked out under the car and now the brakes don't even work do you know what it could be thank you very much
@@superb60ce but is the brake booster connected to the vacuum system? could it be that by increasing the vacuum the membrane broke? and did the oil leak?
@@marcoviola8768 You did not increase the vacuum, yo increased the capacity of the system to hold vacuum when the vacuum drops due to engine loading. The brake booster vacuum, while drawn from the intake manifold, is seperate from the accessory vacuum system
Hi, I just bought this 1993 Wrangler 6 Cyl. with a Freshley rebuilt engine. When I first got it, It ran supper rich, black smoke upon acceleration. rough idle, slight hesitation upon acceleration and loss of power from 2500 RPM & up. I found codes for TPS and MAP. Aso found his new Spark plugs Fuel fouled. Dry and black. Now, after I changed spark plugs, the MAP, IAC, TPS and Temp sensors It runs good. but I'm smelling something weird upon acceleration. the heavier I accelerate the worst the smell. Almost smell like fuel smell mixed with some kind of chemical smell. I can't figure out where its coming from. Any suggestions. Thanks...
I have a 91 YJ 4.0L my question is the rear ccv valve fitting on the valve cover. Is that just a free flowing un restricted elbow or is there supposed to be some kind of restriction in the elbow? My fitting is the twist in type with no restriction. I guess what I am saying is my front and back ccv fittings in the valve cover bot look the same. I am having problems smoging my jeep it has high exhaust temps and thinking this might be a vacuum problem??? Great videos!
I have a 1993 wrangler with a 2.5 engine and at the front of the valve cover there is something that screws into the side of the cover with a vacuum hose attached to it. What is this called?
Hey ,this is just amazing information, ive also seen you replace the vaccum reservoir, just specatcular how you work and explain things. So here is my story, i got a red 96 XJ just like this one, and since i installed headers last fall, i've noticed a whistling noise and also a tick sound. So i know it can be the lifters, but i heard something collapse when i revved at a stop light, since then ,theres been gas smell in the cabin, so i got a cannister as i have no vaccum reservoir ( broken). is it ok to drive a 96 without a reservoir, if not ill get one and i will get the break booster valve to fix the whistle noise, do you know what is the size of the hose for that and what is the part called in 1:39 of the video ( the other hose that connects to the manifold ) also got a fuel pressure regulator, i heard those 2 can take away the carbon or gas smell in the cabin. can you tell me where the fuel pressure regulator is located, i would really appreciate it. thanks, and keep up the great work, your helping all of us, may the lord bless you. cheers
The 96xj fuel pressure regulator is part of the fuel pump assembly in the tank. The 96 is an OBD2 system that uses a higher pressure "dead head" system
I'd love to know where that mid throttle whistle comes from after you install one of those BBK 62mm throttle bodies. I even machined my throttle body spacer to 62.5mm to match.
Can anyone out there tell me if my 2002 Jeep Wrangler TJ (X) 4.0 litre engine requires an EGR Valve ??? Just purchased it in February and trying to nail down the lack of power in 5th gear on any kind of slope! Thanks!!
Dude , ive been chasing my tail on this sob for a year , finally found it , leaky vacuum hose , i knew it , but couldnt find it under the battery , wow , dam i think i ❤ you ...😂😂
a lot of part store will refer to them both as PCV valves, the front one is without orifice, the rear one with....check rock-auto and search thru ALL the Jeeps with these engines and you WILL find them
I found out the vacuum line going to cruise control servo was cut. Im assuming thats why my cruise control doesnt work. But would this also cause me to fail smog? Ive been failing due to high nox
I have a 98 cherokee I get a rough idle but driving is fine, I've changed spark plugs, wires, distributor cap and rotor, went to do injector o rings but they were all good but noticed one connector was corroded, cleaned that up and it got rid of my missfire code but I still have a rough idle. Any tips on where to check next? I was thinking pcv or vacuum maybe. But I know my fuel pump isn't doing well so maybe that's causing the rough idle too? Thanks for any advice in advanced.
If you had one corroded connector, you need to check ALL electrical connections in the entire vehicle. Clean all connections, including grounds, and reassemble. For cleaning contacts I like De-Oxit www.amazon.com/Hosa-D5S-6-DeoxIT-Contact-Cleaner/dp/B00006LVEU/ref=sr_1_5?hvadid=557593763921&hvdev=c&hvlocphy=9010612&hvnetw=g&hvqmt=e&hvrand=7415591679867025366&hvtargid=kwd-10889212602&hydadcr=18880_13357729&keywords=deoxit%2Bdn5&qid=1703887184&sr=8-5&th=1
So I have a 89 YJ with 4.2, and I heard you say this PVC routing is the same only front valve cover hose goes to the carb air filter (I have an Edlbrock air filter on a Motorcraft 2150) and the back one with the PVC goes to manifold vac, is that correct?
Hi I’m from Costa Rica and I just purchased an XJ 1988 and i wonder if you have the size of both (PCV/CCV) or a link where I could buy it on Amazon or eBay. Thank you 🙌🏻
I have ‘06 Rubicon Automatic leaks oil between engine and trans at high rpm, not idle. I replaced rear engine seal and oil pan gasket 3 times. Wondering if blocked ccv is causing high pressure buildup and resulting in oil release thru rear main seal. Appreciate ur thoughts … thx
Possible. I would replace both the metered and unmetered to be sure, and maybe re-do the rear main and make sure it is correct (they can be installed backwards)
@@superb60ce it’s an 89. I have the aluminum valve cover as well, I’m not sure the CCV grommets and “valves” would fit in the holes that are in it. Tried finding a metal stamped one with the better baffle setup but not lookin good. I also don’t seem to have much air being pulled into the front hole in cover or I watched a guy say I should have enough suction in the dipstick tube to keep a small square of paper sucked to it, ever heard of that one?!
Well I got a 1995 Grand Cherokee when I brought the car it used to only smoked out the tailpipes when I'm sitting still on Park letting the car run now the car is smoking when I drive and not smoking when I'm in park I actually fixed them two lines on top of my motor like you said but I'm still trying to figure out why do we smoke when I'm driving but not when I'm sitting in the park can you help me
@@superb60ce yes it will smoke up a block but it's not the smoke u get when your engine bout to go.light grey.and yes my oil disappear like every week every since I had the jeep last June. When I first broke the Jeep in June it used to smoke only when I let it idle and Park it never smoke when I drove the Jeep now is vice versa is smokes when I drive but not smoke when I sit in park
My 1993 xj has a map sensor on the rear fire wall, which connects to the intake manifold (not at the throttle body)! Will changing from my original cover ... to the cover your recommending assist me? 2nd which pcv /ccv / and gasket do you recommend to use (on the 93) with the new cover? Do you still have the item numbers! Thank you in advance Great video! I appreciate and click subscribe as well! #NEBProdsBx / #DBNEBMusic / #OTBST
I will always recommend replacing the OBD-1 (early HO) valve cover to the later steel cover. The oil baffle is that much better. As far as PCV/CCV valves go...check rock auto under 96 cherokee
I dont get why its so hard to find a video that shows the sound lol..... Every single video I have seen just has some old white blue collar guy trying his hardest to explain the sound and solution.... Just show the sound!!!! lol
![Jeep Cherokee: CCV System & Valve Cover - How to Replace Elbow Grommets/ How it Works [‘96-’01 XJ]](http://i.ytimg.com/vi/Qk1PrDcuyZw/mqdefault.jpg)
Thank you. I kept telling the guys I hang out with I needed to check vacuum line. The back port vacuum line boot was cracked
Leaks Leaks Leaks, the bane of a Jeep owners existence
I m wonder if you can help me on the Thing Vacuum line how to properly connected on a 98 grand cherokee limited 5.2
Don't know, I generally don't mess with GC V-8 engines
Hi, I have a problem on my 1998 Cherokee XJ AMC 2.5 petrol. I replaced the vacuum ball with a larger one because I lost it during a trip went off-road the car ran well for a very short time and at a certain point a lot of oil leaked out under the car and now the brakes don't even work do you know what it could be thank you very much
@@marcoviola8768 not sure, but your symptoms are not being caused by the larger vacuum canister
@@superb60ce but is the brake booster connected to the vacuum system? could it be that by increasing the vacuum the membrane broke? and did the oil leak?
@@superb60ce What could they be caused by?
@@marcoviola8768 You did not increase the vacuum, yo increased the capacity of the system to hold vacuum when the vacuum drops due to engine loading. The brake booster vacuum, while drawn from the intake manifold, is seperate from the accessory vacuum system
What if the cabin air fan not working spinning I checked it on a battery it’s good so how can I get my air running right in a 96 zj?
Really not familiar with the ZJ systems, but I would check the blower resistor.
@@superb60ce thank you I will check that out.
I got a 92 ; i get fumes oil rightat dip stick line.
Remove the valve cover, then remove the oil baffles from the inside of the cover and clean them. Re-install everything and use new PCV / CCV valves
Hi, I just bought this 1993 Wrangler 6 Cyl. with a Freshley rebuilt engine. When I first got it, It ran supper rich, black smoke upon acceleration. rough idle, slight hesitation upon acceleration and loss of power from 2500 RPM & up. I found codes for TPS and MAP. Aso found his new Spark plugs Fuel fouled. Dry and black. Now, after I changed spark plugs, the MAP, IAC, TPS and Temp sensors It runs good. but I'm smelling something weird upon acceleration. the heavier I accelerate the worst the smell. Almost smell like fuel smell mixed with some kind of chemical smell. I can't figure out where its coming from. Any suggestions. Thanks...
Check exhaust, make sure there are no leaks
I have a 91 YJ 4.0L my question is the rear ccv valve fitting on the valve cover. Is that just a free flowing un restricted elbow or is there supposed to be some kind of restriction in the elbow? My fitting is the twist in type with no restriction. I guess what I am saying is my front and back ccv fittings in the valve cover bot look the same. I am having problems smoging my jeep it has high exhaust temps and thinking this might be a vacuum problem??? Great videos!
The rear fitting should have a restriction in it. The High exhaust temps could be from running too lean
@@superb60ce Do you know where I could find the rear fitting, The CCV valve? All I seem to be able to find is the front wide open fitting.
@@timmosazz www.rockauto.com/en/moreinfo.php?pk=1320609&cc=1180314&pt=5052&jsn=909&_nck=8LVLUxTaILBT%2BtLxkg8%2B3Ag7%2F0bbOhvn7P3rkFbL80%2FismhHyfCiO07pwNUCaIW3afbJMKR0uqi1pNnUlRgBN5CwkZnWFYwm7DtiVw8cl6t1DDIlw0OPK8L1xqUF2GhWh7smW3GvoaPlBD58hPADzQmLyhvEjE7wOSmUMVBgGxIAg8UGvlT%2Fq%2Fuxxok5MBYIvkFl3H4ph70IsOJHDkMVqkX6oWjsQzVDE8wvnqR%2FDpmb%2BHmWTDgyZ52WVEl0sMwdKP0hKzSJHD2YpYd4WtWdINtY7JWTLXRula9MeQDUTHM%3D
I have a 1993 wrangler with a 2.5 engine and at the front of the valve cover there is something that screws into the side of the cover with a vacuum hose attached to it. What is this called?
That is your metered orifice. The other end of the valve cover has the fresh intake for the CCV
Hey ,this is just amazing information, ive also seen you replace the vaccum reservoir, just specatcular how you work and explain things. So here is my story, i got a red 96 XJ just like this one, and since i installed headers last fall, i've noticed a whistling noise and also a tick sound. So i know it can be the lifters, but i heard something collapse when i revved at a stop light, since then ,theres been gas smell in the cabin, so i got a cannister as i have no vaccum reservoir ( broken). is it ok to drive a 96 without a reservoir, if not ill get one and
i will get the break booster valve to fix the whistle noise, do you know what is the size of the hose for that and what is the part called in 1:39 of the video ( the other hose that connects to the manifold ) also got a fuel pressure regulator, i heard those 2 can take away the carbon or gas smell in the cabin. can you tell me where the fuel pressure regulator is located, i would really appreciate it. thanks, and keep up the great work, your helping all of us, may the lord bless you. cheers
The 96xj fuel pressure regulator is part of the fuel pump assembly in the tank. The 96 is an OBD2 system that uses a higher pressure "dead head" system
I'd love to know where that mid throttle whistle comes from after you install one of those BBK 62mm throttle bodies. I even machined my throttle body spacer to 62.5mm to match.
I have a BBK on my 4.6 stroker in my CJ and do not have any whistle. I would suspect the spacer...they dont do anything anyway
The whistle is from the throttle body spacer all they really do is leak.
I've got a 91 xj. Wondering if I can just block the egr valve?
91 XJ with the 4.0 HO motor does not have an EGR
@@superb60ce Umm thats why it wasnt in the spot it was in the videos.... Hmmm,, Ok Thank you!!
Can anyone out there tell me if my 2002 Jeep Wrangler TJ (X) 4.0 litre engine requires an EGR Valve ??? Just purchased it in February and trying to nail down the lack of power in 5th gear on any kind of slope! Thanks!!
The 4.0 does not have an EGR. Since you have an X, I would guess that you have airplane gears and oversized tires...gonna suck on hills in 5th
Dude , ive been chasing my tail on this sob for a year , finally found it , leaky vacuum hose , i knew it , but couldnt find it under the battery , wow , dam i think i ❤ you ...😂😂
Glad I could help
thanks for this, what is the part number for that first check valve? I can't find it anywhere
a lot of part store will refer to them both as PCV valves, the front one is without orifice, the rear one with....check rock-auto and search thru ALL the Jeeps with these engines and you WILL find them
I found out the vacuum line going to cruise control servo was cut. Im assuming thats why my cruise control doesnt work. But would this also cause me to fail smog? Ive been failing due to high nox
It could....running lean
I have a 98 cherokee I get a rough idle but driving is fine, I've changed spark plugs, wires, distributor cap and rotor, went to do injector o rings but they were all good but noticed one connector was corroded, cleaned that up and it got rid of my missfire code but I still have a rough idle. Any tips on where to check next? I was thinking pcv or vacuum maybe. But I know my fuel pump isn't doing well so maybe that's causing the rough idle too? Thanks for any advice in advanced.
If you had one corroded connector, you need to check ALL electrical connections in the entire vehicle. Clean all connections, including grounds, and reassemble. For cleaning contacts I like De-Oxit www.amazon.com/Hosa-D5S-6-DeoxIT-Contact-Cleaner/dp/B00006LVEU/ref=sr_1_5?hvadid=557593763921&hvdev=c&hvlocphy=9010612&hvnetw=g&hvqmt=e&hvrand=7415591679867025366&hvtargid=kwd-10889212602&hydadcr=18880_13357729&keywords=deoxit%2Bdn5&qid=1703887184&sr=8-5&th=1
So I have a 89 YJ with 4.2, and I heard you say this PVC routing is the same only front valve cover hose goes to the carb air filter (I have an Edlbrock air filter on a Motorcraft 2150) and the back one with the PVC goes to manifold vac, is that correct?
I believe so
Hi I’m from Costa Rica and I just purchased an XJ 1988 and i wonder if you have the size of both (PCV/CCV) or a link where I could buy it on Amazon or eBay. Thank you 🙌🏻
Let me check
I have ‘06 Rubicon Automatic leaks oil between engine and trans at high rpm, not idle. I replaced rear engine seal and oil pan gasket 3 times. Wondering if blocked ccv is causing high pressure buildup and resulting in oil release thru rear main seal. Appreciate ur thoughts … thx
Possible. I would replace both the metered and unmetered to be sure, and maybe re-do the rear main and make sure it is correct (they can be installed backwards)
I have a 2001 Grand Cherokee Laredo it has two pcv valves are they both the same parts #??
No....one is with orifice and one without
At some point my Jeep must have been converted to PCV instead of CCV (I have a PCV valve on back cover hole). Will this work or should I switch back?
If it is a 91 or later HO motor, I would configure it with the CCV port
@@superb60ce it’s an 89. I have the aluminum valve cover as well, I’m not sure the CCV grommets and “valves” would fit in the holes that are in it. Tried finding a metal stamped one with the better baffle setup but not lookin good. I also don’t seem to have much air being pulled into the front hole in cover or I watched a guy say I should have enough suction in the dipstick tube to keep a small square of paper sucked to it, ever heard of that one?!
@@dkhallal The pre 91 RENIX motors are a different beast. You should have a PVC valve in the system
Mine is a 93 zj 4 liter do I have 2 pcv valves on this engine, I see one on top
Should have one metered orifices (rear) and one vent (front)
Good stuff brother
Appreciate it
thanks for the info. to change the valve cover to newer one do i switch over to a pcv or keep the ccv on a 91 wrangler.
The CCV system is the same on all 4.0 91-06. The only thing you will change is the cover and gasket (later gasket is different)
Well I got a 1995 Grand Cherokee when I brought the car it used to only smoked out the tailpipes when I'm sitting still on Park letting the car run now the car is smoking when I drive and not smoking when I'm in park I actually fixed them two lines on top of my motor like you said but I'm still trying to figure out why do we smoke when I'm driving but not when I'm sitting in the park can you help me
are you sure it is smoke. fuel Smoke (rich) is black or dark grey, water vapor is white, oil burn is blueish grey
@@superb60ce yes it will smoke up a block but it's not the smoke u get when your engine bout to go.light grey.and yes my oil disappear like every week every since I had the jeep last June. When I first broke the Jeep in June it used to smoke only when I let it idle and Park it never smoke when I drove the Jeep now is vice versa is smokes when I drive but not smoke when I sit in park
Does it smell like rotten eggs
nope
My 1993 xj has a map sensor on the rear fire wall, which connects to the intake manifold (not at the throttle body)! Will changing from my original cover ... to the cover your recommending assist me? 2nd which pcv /ccv / and gasket do you recommend to use (on the 93) with the new cover? Do you still have the item numbers! Thank you in advance Great video! I appreciate and click subscribe as well! #NEBProdsBx / #DBNEBMusic / #OTBST
I will always recommend replacing the OBD-1 (early HO) valve cover to the later steel cover. The oil baffle is that much better. As far as PCV/CCV valves go...check rock auto under 96 cherokee
I dont get why its so hard to find a video that shows the sound lol..... Every single video I have seen just has some old white blue collar guy trying his hardest to explain the sound and solution.... Just show the sound!!!! lol
What sound? The whistling sound of a vacuum leak? We use a smoke tester to find them because it is almost impossible to detect