CRD Auto Lost Power - Front air flow problem?

[Bluey]

Sharparte I have had the same problem for some time and thought it was the driving lights or winch blocking the air flow. I removed them and it made it better but i still have an overheating issue. On the week end i towed our horse float and when the engine temp hit about 105 dergrees up a slight long hill but with still no movement on the temp gauge the boost pressure dropped from about 21lb to 15lb, this does not sound much but takes alot of power out of the engine. I have a clean booked in for tomorrow and if this does not fix it i will chase up some one to make up a larger radiator. I am hoping they find the radiator blocked and a good clean fixes the problem.


The overheating only happens when temp above 35 degrees and after a steep long incline or a lessor incline with a horse float on, even empty.

[tdwrangler]

I've noticed my truck gets EXTREMELY sluggish in hot weather with the A/C on. Never budges on the temp gauge, but sometimes it feels like its gonna stall when taking off in 1st unless I give it a good rev. And I really have to wind it up through the gears to get anything close to normal acceleration.

[Yom]

The JK CRD we get has some challenges with cooling I think.

The J8 with the same CRD makes do with no front mount intercooler (also has less power and torque though)

If you have been anywhere near mud or you are not the first owner of the vehicle it would be worth pulling the FMIC and radiator out for a proper inspection/cleaning. You can hose it while it is in the vehicle all you want, you will not be able to get all the mud out.

Also, use low pressure from a tap!!! Do not use high pressure hose to clean the fins.

[SharpWraX]

My advice re SS turbo pipes was that lack of pipe "flex" is a problem.

[Yom]

a good kit will use either rubber or silicone joiners to allow flex when the engine is running.

[Bluey]

Originally Posted by Yom

The JK CRD we get has some challenges with cooling I think.

The J8 with the same CRD makes do with no front mount intercooler (also has less power and torque though)

If you have been anywhere near mud or you are not the first owner of the vehicle it would be worth pulling the FMIC and radiator out for a proper inspection/cleaning. You can hose it while it is in the vehicle all you want, you will not be able to get all the mud out.

Also, use low pressure from a tap!!! Do not use high pressure hose to clean the fins.

Yom, I am hoping it is just a blockage but not not confident this is the case, but if I need to i wont bother jeep with it, will just have some one like PWR make up a new higher capacity radiator. I will post next week the results.

[otomix]

Originally Posted by Bluey

Yom, I am hoping it is just a blockage but not not confident this is the case, but if I need to i wont bother jeep with it, will just have some one like PWR make up a new higher capacity radiator. I will post next week the results.

Had the EXACT same problem with mine, Mate. On the way from picking it up in QLD, and driving back to Canberra (also the CRD etc) and mine had the transmission cooler jammed in front of the Intercooler, then the AC/stock tranny cooler and then radiator

up the hills near newcastle the AC started to get warm, and the needle moved to 3/4, so i backed off the throttle, turned off the AC and the temp went down.

Since then, I pulled off the the tranny cooler that had been fitted, and in turn fitted the B&M tranny gauge. The temps are always spot on, towing and all... I haven't seen the need for a cooler yet. That said, after it was removed, I soaked the the IC, Radiator and Condensor all with degreaser, and left it for 10, gave it another spray, then hit it with some pressure outta the tap.... The amount of mud and bugs and feces that came out of the thing was AMAZING!


If you manage to find someone to do a decent radiator for the VM diesel's, and for how much, let me know. I'm 100% keen on getting one too.

You're not alone dude!