Nice job.👍👍 Personally I would have used the good old green coolant and a THIN layer of gasket SEALANT on the t-stat and water pump to help along with the gaskets.💪👊😁😁
The green coolant is a classic! I’ve always used that orange coolant and I figured if I ever need more I can go to any autozone and get it 😂. I’ve never needed sealant but if that thermostat housing leaks at all it’s getting some! Thanks for watching man 😎
when I installed the flow cooler on the pink engine, I used a very thin layer of grey silicone helps keep it in place and extra peice of mind. that does remind me time for a flush.
I decided to do like you recommended and flushed out the heater core. All this rusty gunk came out! Good Rec. Also, the exact same thing happened to me! I sprayed water and soaked myself. hahaha luckily it's hot and I didn't mind. Love the videos.
I think the pump will work well in stop and go traffic during the summer forsure. Our jeep get up to 220 but that’s during slow crawling with no air flow. So I hope this pump helps
Nice to see someone still doing XJ videos, will be interested in how the cooling works out for you once you start driving it again. I have a 96 as well over here in NM. Looks like mostly stock cooling on mine except for the electric fan that replaced the mechanical fan, sounds like a turbo fan when its running but it seems to do the job, never gets above 210 for the most part. I haven't done anything to the cooling system, mostly drivetrain and suspension upgrades so far. Keep the content coming. 👍👍
I appreciate you watching! I did go over the results of the upgrades in my last livestream but I’ll save you the watch time lol. Everything has been great! The jeep is actually running cooler than it did and has been alot more comfortable with some of my other upgrades. That’s awesome that your 96 is running cool also 😎 I always thought about doing an electric fan upgrade but the thought of it failing while out on a trip has always scared me lol. We’ll keep the vids coming so we can keep these old rigs on the road 😎
Nice video and easy to understand, I’m using the same Thor intake and high flow pump rebuilt my 4.0 to a 4.7 last year and it’s been running great with the increased cooling did the dpg 2 row aluminum rad a few years back it’s a great upgrade but I think they stopped making it.
Thanks for the input :) I’m glad it’s working well for your 4.7. That or another 4.0 is the route I’m gonna go when this motor quits. Im using an AlloyWorks 3 row radiator currently and it’s been great. It’s been running 200ish this summer with a 195 t-stat and when it’s cooler outside it gets all the way down to 180 😬
I just bought an Xj and your channel is great I want to build it into a overlanding/lite rock crawling rig and have been reading a ton about overheating and getting worried I picked a problematic platform
Great video, very informative and easy to understand. I do wish it showed you doing the actual instal, as I am a super amateur "mechanic" but I think I got it! I have a noob question. What's the benefit of the high flow parts? Does it make the engine run cooler? Getting too hot is always an issue with my jeeps. I've already bought the one you showed on the left. Would it be worth it for me to return it and buy the higher flow one? Thanks a lot man! I'm going to check out more of your videos.
Thank you so much for watching! The high flow parts do make it run cooler, the stock thermostat housing is fine but the high flow housing doesn’t restrict the coolant flow compared to the stock one. If you haven’t bought the high flow one just use the stock one until you feel like switching it out
Not sure if what pump and housing was put on mine. I could see that this could be a benefit as the pump would provide higher flow rate, but not so sure about the housing as it has a regulator called a thermostat. If the thermostat had a larger valve to allow a higher rate of flow that would be an important factor. On this type of system I like to drill a small hole into the thermostat valve to assist in eliminating any possible air pocketing in the housing on my previous 5.2 ZJ. I don't know if this would be something that could be beneficial on the 4.0. Yet I have come to appreciate the cooling system on my early XJ as it's different and I do not need to burp/bleed the system as the coolant expansion bottle sits higher than the rest of the cooling system. I can say that my girlfriends 4.0 '89 Pioneer here in the PNW doesn't have any cooling issue's on the over 300,000 mile engine. Yet I did install the proper switch in the radiator that is for the secondary fan, but has a manual switch if/when needed which is rarely used. Thank You for the content.
I really appreciate that! Thank you! The water pump does make higher block pressure between 0-3000 RPM’s but you don’t need a different radiator cap. I’ve been using the same one my radiator came with no issues.
@@2AOverland How does that temp compare to your previous water pumps (If you know)? Thinking about getting a Flowkooler for my XJ. She runs about 220 pulling hills in 95-100deg heat now. Even seen 230 once or twice on long, steep dirt roads and pulled over for a break. The rest of the cooling system was still factory parts dated '98 when I bought it so I'm sure it's time for a water pump.
I haven’t been able to drive it to fully test it since I have it pulled apart for a future video. But it was idling cooler and I think the pump works best at lower rpm’s while crawling or driving slow. This is what it says on quadratec about the water pump. I hope this helps! “FlowKooler water pumps solve low-speed overheating problems by doubling the water flow rate at low RPM & idle. At 3,500 RPM the flow rate returns to normal to prevent excess water flow at high speed. Independent testing proves that FlowKooler water pumps produce 20% more gallons per minute at 2000 RPM & 100% more gallons per minute at 900 RPM than any other pump on the market today, including expensive racing pumps.”
So far so good 😊 I’ve heard of issues with them too but I haven’t experienced them at all. I have a flowkooler in the XJ and the Squarebody and they’ve been great
I have the flow cooler and a alumaworks radiator and 3 fan combo. I'm having a problem with the Jeep when it gets warm it doesn't want to idle. Any ideas what this could be?
Thanks for watching! It’s been great so far. Zero issues and the jeep has been running below the normal temp of 210 with this setup even with a 195 T stat
I don’t know 😬 you might have to contact them for that. I know of guys using this for the 4.2l with the serpentine belt but not sure about the v-belt. Here’s their number if you wanna ask that! I’d like to know too. 805-239-2501
I haven’t been able to drive it to test how it cools while driving cause I’ve had it pulled apart for filming another upcoming video 😬. But This is the description from the quadratec website for the water pump. “FlowKooler water pumps solve low-speed overheating problems by doubling the water flow rate at low RPM & idle. At 3,500 RPM the flow rate returns to normal to prevent excess water flow at high speed. Independent testing proves that FlowKooler water pumps produce 20% more gallons per minute at 2000 RPM & 100% more gallons per minute at 900 RPM than any other pump on the market today, including expensive racing pumps.” The radiator I have is a cold case radiator. Here’s a link amzn.to/3OLluyi
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Nice job.👍👍 Personally I would have used the good old green coolant and a THIN layer of gasket SEALANT on the t-stat and water pump to help along with the gaskets.💪👊😁😁
The green coolant is a classic! I’ve always used that orange coolant and I figured if I ever need more I can go to any autozone and get it 😂. I’ve never needed sealant but if that thermostat housing leaks at all it’s getting some! Thanks for watching man 😎
when I installed the flow cooler on the pink engine, I used a very thin layer of grey silicone helps keep it in place and extra peice of mind. that does remind me time for a flush.
Good call man 😊 if i have any kind of leak I’ll pull the pump and silicone it. And gotta get that summer jeep prep done!
I decided to do like you recommended and flushed out the heater core. All this rusty gunk came out! Good Rec. Also, the exact same thing happened to me! I sprayed water and soaked myself. hahaha luckily it's hot and I didn't mind. Love the videos.
Good man! That will help with your heat during the winter too with the better flow! Thank you so much for watching!
I always use RTV on these gaskets. I've never had a leak.
Can’t go wrong with what has been working forever! I just happen to like paper gaskets
I might upgrade to that. Never overheated but runs 212 in traffic in the AZ summer.
I think the pump will work well in stop and go traffic during the summer forsure. Our jeep get up to 220 but that’s during slow crawling with no air flow. So I hope this pump helps
Damn, my Comanche was overheating in 25° weather....
Nice to see someone still doing XJ videos, will be interested in how the cooling works out for you once you start driving it again. I have a 96 as well over here in NM. Looks like mostly stock cooling on mine except for the electric fan that replaced the mechanical fan, sounds like a turbo fan when its running but it seems to do the job, never gets above 210 for the most part. I haven't done anything to the cooling system, mostly drivetrain and suspension upgrades so far. Keep the content coming. 👍👍
I appreciate you watching! I did go over the results of the upgrades in my last livestream but I’ll save you the watch time lol. Everything has been great! The jeep is actually running cooler than it did and has been alot more comfortable with some of my other upgrades.
That’s awesome that your 96 is running cool also 😎 I always thought about doing an electric fan upgrade but the thought of it failing while out on a trip has always scared me lol.
We’ll keep the vids coming so we can keep these old rigs on the road 😎
Good content, excellent filming, keep it up man, doing a good job! 👍🏻👍🏻👍🏻
I appreciate it brother 😊👍🏼 we’ll keep plugging away!
Nice video and easy to understand, I’m using the same Thor intake and high flow pump rebuilt my 4.0 to a 4.7 last year and it’s been running great with the increased cooling did the dpg 2 row aluminum rad a few years back it’s a great upgrade but I think they stopped making it.
Thanks for the input :) I’m glad it’s working well for your 4.7. That or another 4.0 is the route I’m gonna go when this motor quits. Im using an AlloyWorks 3 row radiator currently and it’s been great. It’s been running 200ish this summer with a 195 t-stat and when it’s cooler outside it gets all the way down to 180 😬
I just bought an Xj and your channel is great I want to build it into a overlanding/lite rock crawling rig and have been reading a ton about overheating and getting worried I picked a problematic platform
Nah they are not hard to keep cool just make sure fans work make sure it has coolent and if you don’t mind the looks a hood vent helps a ton
Great video, very informative and easy to understand. I do wish it showed you doing the actual instal, as I am a super amateur "mechanic" but I think I got it!
I have a noob question. What's the benefit of the high flow parts? Does it make the engine run cooler? Getting too hot is always an issue with my jeeps. I've already bought the one you showed on the left. Would it be worth it for me to return it and buy the higher flow one? Thanks a lot man! I'm going to check out more of your videos.
Thank you so much for watching! The high flow parts do make it run cooler, the stock thermostat housing is fine but the high flow housing doesn’t restrict the coolant flow compared to the stock one. If you haven’t bought the high flow one just use the stock one until you feel like switching it out
Not sure if what pump and housing was put on mine. I could see that this could be a benefit as the pump would provide higher flow rate, but not so sure about the housing as it has a regulator called a thermostat. If the thermostat had a larger valve to allow a higher rate of flow that would be an important factor. On this type of system I like to drill a small hole into the thermostat valve to assist in eliminating any possible air pocketing in the housing on my previous 5.2 ZJ. I don't know if this would be something that could be beneficial on the 4.0. Yet I have come to appreciate the cooling system on my early XJ as it's different and I do not need to burp/bleed the system as the coolant expansion bottle sits higher than the rest of the cooling system. I can say that my girlfriends 4.0 '89 Pioneer here in the PNW doesn't have any cooling issue's on the over 300,000 mile engine. Yet I did install the proper switch in the radiator that is for the secondary fan, but has a manual switch if/when needed which is rarely used. Thank You for the content.
Always back flush the heater core.
Always! A few months before installing all of this I replaced my heater core with a new one
Does it create higher water pressure in the system? Do I have to change the radiator cap for a different pressure? You done a great job with video.
I really appreciate that! Thank you! The water pump does make higher block pressure between 0-3000 RPM’s but you don’t need a different radiator cap. I’ve been using the same one my radiator came with no issues.
How has this been working out? I have that housing already and been looking into that water pump.
Sorry for getting back you late but it’s definitely worth it! It will help with cooling a lot
OK, you're killing me. I've been debating on doing this to my XJ. How is that new water pump performing ?
JUST DO IT 😊 lol zero issues whatsoever. When I drove it on the freeway last coolant temps were about 205 at 5pm in 105deg AZ heat…
@@2AOverland How does that temp compare to your previous water pumps (If you know)? Thinking about getting a Flowkooler for my XJ. She runs about 220 pulling hills in 95-100deg heat now. Even seen 230 once or twice on long, steep dirt roads and pulled over for a break. The rest of the cooling system was still factory parts dated '98 when I bought it so I'm sure it's time for a water pump.
Did you notice any better cooling? I only get warm pulling grade. Does ot help?
I haven’t been able to drive it to fully test it since I have it pulled apart for a future video. But it was idling cooler and I think the pump works best at lower rpm’s while crawling or driving slow. This is what it says on quadratec about the water pump. I hope this helps!
“FlowKooler water pumps solve low-speed overheating problems by doubling the water flow rate at low RPM & idle. At 3,500 RPM the flow rate returns to normal to prevent excess water flow at high speed. Independent testing proves that FlowKooler water pumps produce 20% more gallons per minute at 2000 RPM & 100% more gallons per minute at 900 RPM than any other pump on the market today, including expensive racing pumps.”
@@2AOverland thanks brotha. Great video. Thank you again
Not a problem man! Thanks for watching again 😊
nice vid
Thank you I appreciate it!
How has it held up? I’ve seen videos about cavitation and the pump braking apart by another TH-cam channel?
So far so good 😊 I’ve heard of issues with them too but I haven’t experienced them at all. I have a flowkooler in the XJ and the Squarebody and they’ve been great
That housing is impossible to find
What housing?
@@2AOverland hesco thermostat housing sold out everywhere
@@deadspeed6679 crap. I checked also and they’re back ordered or sold out on Quadratec. That’s where I ordered it
Are you just using a stock Thermostat, or is there a special one to get?
I used a stock thermostat
I have the flow cooler and a alumaworks radiator and 3 fan combo. I'm having a problem with the Jeep when it gets warm it doesn't want to idle. Any ideas what this could be?
I honestly don’t know 😬 I’ve never heard of that issue before or had it happen to me
Hi flow cooler is great at higher RPMs, doesn't work so great at idle or lower RPMs. I'd switch back to OEM parts!
Their site says it works best under 3000rpms for flow
What radiator are you running? I wanna upgrade mine so I don’t overheat after putting this new head on
I have a cold case radiator 😎
What radiator is that?
It’s an alloy works radiator
Why not add a high flow thermostat??
It’s a good idea! I just don’t remember why I didn’t 🤔
How did that high flow water pump and T stat housing work out for you
Thanks for watching! It’s been great so far. Zero issues and the jeep has been running below the normal temp of 210 with this setup even with a 195 T stat
@@2AOverland cool keep us updated thanks
Will do thank you 😎
Not happy with flowcool. I have a water pump less that a year old leaking and i cant get any response from them on it
I’m sorry man 😬 they should get better at answering their customers back maybe
Do they make a high flow wp for the 4.2l with v belts?
I don’t know 😬 you might have to contact them for that. I know of guys using this for the 4.2l with the serpentine belt but not sure about the v-belt. Here’s their number if you wanna ask that! I’d like to know too. 805-239-2501
The v belt spins in the opposite direction so that one won't work and thanks!
What radiator are you running?
Alloy works 3 row all aluminum radiator
Does it run any cooler? And which radiator is it?
I haven’t been able to drive it to test how it cools while driving cause I’ve had it pulled apart for filming another upcoming video 😬.
But This is the description from the quadratec website for the water pump. “FlowKooler water pumps solve low-speed overheating problems by doubling the water flow rate at low RPM & idle. At 3,500 RPM the flow rate returns to normal to prevent excess water flow at high speed. Independent testing proves that FlowKooler water pumps produce 20% more gallons per minute at 2000 RPM & 100% more gallons per minute at 900 RPM than any other pump on the market today, including expensive racing pumps.”
The radiator I have is a cold case radiator. Here’s a link amzn.to/3OLluyi
Do those hood vents work?
They’ve worked for me so far 😎
I have similar ones and they made a huge difference with the cylinder 3 heat soak issue.
Why not just use the 50/50 antifreeze
Thanks for watching! It’s cheaper to get straight coolant and dilute it with distilled water
That's the wrong coolant you're supposed to use green and only green not orange antifreeze
The orange has been in the Jeep for the past 10 years and it’s been fine