Question about Jeep Cherokee

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Hi this is not a problem but a question . Do i need to idle my cherokee 2.8 crd 2009 to let the turbo cool everytime i drive or just after highway driving ? Thank you

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DEPENDS,if you drive hard,then let it idle,regardless of what type of roads.the turbo only gets really hot when you use more than 1/2 gas pedal constantly. to overtake or stop sign racing.

Posted on Oct 07, 2010

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Posted on Jan 02, 2017

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Hi I have 2009 twin turbo diesel land cruiser which is starting to overheat when idling


1. It might not be getting enough air through the radiator because the radiator is dirty, the fan isn't pulling enough air through because of a slipping belt, missing belt or bad fan clutch.
2. The coolant might not be transferring heat as much as it should due to deposits in the radiator, deposits in the engine or low coolant level.
3. The water pump impeller may be spinning on the shaft [not likely but it can happen] or the water pump pulley may be slipping on the drive belt.

Feb 01, 2015 | Cars & Trucks

1 Answer

Jeep cherokee 2.8 CRD smoking. Replaced the injectors without any improvment. The garage told me that the smoke will stop after I have driven it for a couple of handred miles. Is this true.


from what you say, they said," it was the injectors that were faulty",hence changeing them,you could have tried a fuel additive/injector cleaner which could have had the same effect.....try a can to 5 gallons of fuel and if no improvement within 100 miles,give them HELL.smoke from a turbo engine could be dirty fuel/compression low/air leak from the turbo pipes/lazy turbo,etc but this engine is not exaclty the cleanest on emmisions.so expect a SMALL amount of smoke when cold or when accelerating HARD.

Dec 03, 2010 | 2004 Jeep Grand Cherokee

1 Answer

2.7 crd.grand cherokee 2002. Varying idling speed,dimmng lights


well it could be the idle control valve or vacuum leak check all vacuum lines for cracks and listen for air sound you may need to check PVC valve

Feb 08, 2010 | 2002 Jeep Grand Cherokee

1 Answer

I need to buy a cambelt for jeep cherokee


check with JCWhitney.com
or even Autozone
or orielly auto parts
all you can check online

Sep 09, 2009 | 2001 Jeep Cherokee

2 Answers

RPMs drift up 200 to 300 rpms when idleing and when in cruise


Problem solved by the dealers service department. Thanks

May 07, 2009 | 2002 Jeep Grand Cherokee

2 Answers

Turbo maintenance


If you let the car idle when you stop driving it gives the car time to recirulate fresh oil through turbo bearing , since the turbo gets extremely hot from the exhaust side (and spins at very high speeds) you really should also run full synthetic oil on turbo cars to extend turbo life.regular motor oil tends to burn and carbon up in turbo bearing and causes premature turbo failure .

Nov 27, 2008 | 2002 Volkswagen Beetle Turbo S

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