Category: Jeep

Jeep
Dannie Lyman

Hemi 6.4 MDS Fault

P3449, P3441, P3425, P3401 are all fault codes relating to the MDS system on the Hemi 6.4 V8. The MDS also known as the cylinder deactivation is an emissions and fuel saving system used on these V8 engines. It effectively shuts down cylinders on the vehicle when they are not required. There are a number

Read More »
Jeep
Dannie Lyman

Jeep WK2 Oil Cooler Failure

A common fault with the Jeep grand Cherokee WK2 Diesel is the internal failure of the oil cooler unit. Frequently we are asked about this fault in terms of “what can be done to prevent it” The short answer to this is to simply replace it. There is no Maintenace that can prevent this problem

Read More »
Jeep
Dannie Lyman

Jeep 3.6 Pentastar Rocker failure

A common issue we have come across with the 3.6 Engine is workshops frequently misdiagnose misfire faults as spark plugs and coils. On the 3.6 a misfire is almost never a spark plug. This led to the need for us to document and publish the 3.6 misfire trouble shooters guide. This guid takes technicians and

Read More »
Jeep
Dannie Lyman

Jeep Wrangler Misfire A Story. 3.6 Melts an Inlet Manifold.

Recent we published a trouble shooting guide to help technicians and DIY guys get to the bottom of miss fire faults ont eh Pentastar 3.6 engine. The need to make such a publication arose as we had a run on vehicles which were either driven or towed to our workshop with a misfire issue. Many

Read More »
Jeep
Dannie Lyman

CP4 HPFP Failure & Tear down

Globally Jeep and its parent company, Stellantis have recalled thousands of vehicles globally for a fuel pump failure on the CP4 Fuel pump which is fitted to the WK2 Jeep Grand Cherokee. This recall has taken several years to role out on Australia with no real urgency. The reason for this is that there is

Read More »
GDL Auto Blog
Dannie Lyman

Skipping a Service: The damage it causes.

No harm done right, what difference would it make? One service here or there shouldn’t matter. This is not true.  The Engine oil in your motor vehicle does three things. it lubricates (everybody knows that) but it also cleans and acts as a form of engine cooling. Over a period of time engine oil properties

Read More »
Jeep
Dannie Lyman

Jeep WK2 Diesel Reconditioned Engine Cost

Replacing the motor in a WK2 diesel is not uncommon. We have covered the failure of the bottom end bearings in these several times. There are some known issues witht he design and combination of these faults and the eight speed transmissions are causing the failure. Once that has happened, the options before you are

Read More »
Jeep
Dannie Lyman

Jeep SRT 6.4 Hemi camshaft failure: A Story Part 1

Recently we had a client come to us with a Jeep SRT with a 6.4 pushrod V8, he recently purchased with some misfire faults. He was told it just needed spark plugs and sent it to us. We have diagnosed this correctly and carried out an oil filter strip down. Its far more serious. We

Read More »
Categories

Would You Like To Speak With The GDL Team?

Simply choose the option below that suits you best.

OR

Request A Callback

Enter your name and mobile below and one of our team will call you within 15 minutes!*

*During business hours

  • This field is for validation purposes and should be left unchanged.