AMC Tech Q & A – Oil Change Intervals

Question A question we sometimes get is - "Curious about oil changes. Synthetic has been around 15000 miles. Looks like you recommend 5,000?" Answer To which we are glad to reply, "Great question!" Yes, we do recommend a shorter interval for older cars. We have an expression, "Oil is cheaper than metal," I'll explain. We all know that oil is used to lubricate the engine components to maximize wear and tear, it also serves transfers heat and helps filter out contaminants from engine operation. Here's Why First, let's address why we change the oil. It's for two reasons, one is [...]

By | July 18th, 2019|Case Studies|Comments Off on AMC Tech Q & A – Oil Change Intervals

1998 Volvo V70 – Clogged Engine Breather/Multiple Oil Leaks

We've seen this before, this car presented with engine oil leaks from nearly every seal. Using our special Volvo diagnostic tool, it was easy to confirm a severely clogged engine breather box. Not an easy job, but one that needed to be handled. This was not a regular service customer car, we find this type of clogging on cars which have been subjected to "quick lube" oil changes, or maintenance has not been carried out according to the factory schedule. In the photos below, you'll note the heavily clogged ventilation ports, both in the black breather box, and in the [...]

By | August 14th, 2011|Case Studies|Comments Off on 1998 Volvo V70 – Clogged Engine Breather/Multiple Oil Leaks

2001 Volvo XC70 – Turbocharger Lubrication Failure

Volvo turbos on the 2nd generation cars generally last the life of the engine, so it was unusual to see this car here with a defective turbocharger. Half the battle in repairing anything is to figure out WHY it failed, so a repeat failure can be avoided. You'll notice on the turbocharger below the impeller or fan which drives the unit is severely worn at the ends. This is caused by the turbo fan contacting the housing, usually because of wear in the turbo bushings or damage to the shaft. In this particular turbo the shaft is actually broken into [...]

By | August 12th, 2011|Case Studies|Comments Off on 2001 Volvo XC70 – Turbocharger Lubrication Failure

Volvo S60 Turbo – ETM and Crankcase Breather Problem

The Volvo Electronic Throttle Module (ETM) has earned a bad reputation, perhaps unfairly, for problems and early failures on the 1998-2001 cars. The ETM is the subject of a warranty extension by Volvo, now up to 10 years from the date the car was first put into service, or 200,000 miles. Volvo has also released a number of updates, both software and in service procedures to deal with these problems. This car in particular had a number of throttle fault codes stored in the engine computer. Volvo has released a Technical Service Bulletin (TSB) addressing this problem, with the recommendations [...]

By | August 6th, 2011|Case Studies|Comments Off on Volvo S60 Turbo – ETM and Crankcase Breather Problem