LR4 Bites The Dust

1of40

Well-known member
Oct 23, 2017
87
17
Va
Was at the the MAR this weekend and a good friend that I've not seen in awhile was telling me the story about his wife's LR4. He was trailering his 90 to an event and noticed steam from the engine bay, pulled over to check things and there was coolant everywhere. Apparently a hose split, the coolant sensor failed and the engine is completely toast. This is the second friend that has lost a modern engine in a matter of seconds. First guy said he had a water pump fail and overheated. Had extended warranty coverage through some fly-by-night insurance company and they would only cover the water pump. The shitty plastic hoses and cheat water pumps on $60-70K vehicle is ridiculous.
 

MM3846

Well-known member
Feb 18, 2014
997
59
LI, NY
I wonder if ever there's going to be any solution to this garbage (plastic crossover tubes).
Just takes the right guy to start making them, and for people to buy them at what I’d imagine would be about 300 bucks for a set.
 

MM3846

Well-known member
Feb 18, 2014
997
59
LI, NY
It's a Ford part, is it not? One of these Coyote AN conversion things might work. I don't know enough about it or have seen the thing apart. I have a pic of the big plastic crossover piece up and it doesn't look like it would be a hard thing to convert to AN fittings on the motor side and get an aluminum piece for the hose side.

 

discostew

Well-known member
Sep 14, 2010
6,503
525
Northern Illinois
It's a Ford part, is it not? One of these Coyote AN conversion things might work. I don't know enough about it or have seen the thing apart. I have a pic of the big plastic crossover piece up and it doesn't look like it would be a hard thing to convert to AN fittings on the motor side and get an aluminum piece for the hose side.

I think your kind of right about it being a Coyote based engine. I think there are some differances because I've looked at some of those fords and while it kinda looks the same, it's different
 

MM3846

Well-known member
Feb 18, 2014
997
59
LI, NY
I think your kind of right about it being a Coyote based engine. I think there are some differances because I've looked at some of those fords and while it kinda looks the same, it's different

Found this for pics, since you guys are more familiar with the JLR motor.


Everything I've read says they're more cousins than siblings. Some ancillary shit is shared, but for the most part they are different motors.
 

Blueboy

Well-known member
Apr 20, 2004
2,777
265
Back in the USA; Rockwood, PA
Was at the the MAR this weekend and a good friend that I've not seen in awhile was telling me the story about his wife's LR4. He was trailering his 90 to an event and noticed steam from the engine bay, pulled over to check things and there was coolant everywhere. Apparently a hose split, the coolant sensor failed and the engine is completely toast. This is the second friend that has lost a modern engine in a matter of seconds. First guy said he had a water pump fail and overheated. Had extended warranty coverage through some fly-by-night insurance company and they would only cover the water pump. The shitty plastic hoses and cheat water pumps on $60-70K vehicle is ridiculous.
That would totally piss me off! And just another reason on not selling the D1 and RRC.
 

p m

Administrator
Staff member
Apr 19, 2004
14,944
400
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La Jolla, CA
www.3rj.org
Well... We just have to live with it.

BTW, Stew or Jimmy - when our LR4 went tits up again (with dead low pressure fuel pump), a service advisor at LR Reno said the failures of low pressure fuel pump are usually followed by those of high-pressure ones.
I don't know if I should call it BS; back then I figured there are two of high-pressure pumps running in parallel and one is sufficient, so I left it as is.
Was it wrong?
 

discostew

Well-known member
Sep 14, 2010
6,503
525
Northern Illinois
Early SC trucks (can’t remember if it was RRS, RR, or both) had a metal outlet pipe. The crossover tube in the back was still plastic though.
Are you sure your not thinking about the Jags? It's possible your right and I've just never seen one. All our 2013 L405's went to China. We never see one in our shop, a 2013 that is.
 

discostew

Well-known member
Sep 14, 2010
6,503
525
Northern Illinois
Well... We just have to live with it.

BTW, Stew or Jimmy - when our LR4 went tits up again (with dead low pressure fuel pump), a service advisor at LR Reno said the failures of low pressure fuel pump are usually followed by those of high-pressure ones.
I don't know if I should call it BS; back then I figured there are two of high-pressure pumps running in parallel and one is sufficient, so I left it as is.
Was it wrong?
He's just playing a really good game of cover your ass. If you have a High pressure fuel pump or 2 fail in the near future he can say I told you so. I could see it if your pump was starving those high pressure pumps. But didn't yours just start to leak? And then you fixed it right away. I'm thinking the cracked housing leak that is about to be a recall is climate related. I've only seen a couple, maybe 3.
What I've seen more of is the pumps start to fail and the duty cycle gets over 30% on a cold start and throws the light. Normal duty cycle for that pump is 26 to 28% if I remember correctly. For that I put both the flange and the pump in them. I'm pretty sure the flange has the one way check valve that keeps pressure in the system, so on a cold start the pump needs to run faster to replace that residual pressure.
 
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p m

Administrator
Staff member
Apr 19, 2004
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La Jolla, CA
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He's just playing a really good game of cover your ass. If you have a High pressure fuel pump or 2 fail in the near future he can say I told you so. I could see it if your pump was starving those high pressure pumps. But didn't yours just start to leak? And then you fixed it right away. I'm thinking the cracked housing leak that is about to be a recall is climate related. I've only seen a couple, maybe 3.
What I've seen more of is the pumps start to fail and the duty cycle gets over 30% on a cold start and throws the light. Normal duty cycle for that pump is 26 to 28% if I remember correctly. For that I put both the flange and the pump in them. I'm pretty sure the flange has the one way check valve that keeps pressure in the system, so on a cold start the pump needs to run faster to replace that residual pressure.
ok, I won't worry about those then. It looks like one of them can be changed relatively easily if needed.