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Tech Tip: Hyundai Sonata Runs/Idles Rough/ DTC P0335 Set/MIL ON
This TSB has been revised to add a procedure to index the oil pump/balance shaft sprocket. Not properly indexing the sprocket may cause an engine vibration mostly noticed at 3,500-4,000 rpm. More
Tech Tip: Multiple Cylinder Misfire or Rough Idle on Chrysler Models
This bulletin involves rotating all engine exhaust valves, replacing the valve spring retainer locks with a new design to increase valve rotation at lower rpm, inspecting/replacing the MAP sensor (as necessary), and decarbonizing the combustion More
When Parts Collide: Volkswagen and Audi Engine Repairs
In the early 1970s, VW/Audi designed a small, efficient and reliable engine that was easy to work on and made use of the then fairly new technology of a rubber timing belt without the possibility of damage if it failed. This two-valve-per-cylinder engine produced excellent power and economy, and really set the standard that many other manufacturers couldn't match. More
Tech Tip: An Economical And Effective Way To Refinish A Seal-Worn Shaft
Grooves from shaft wear can allow oil to leak out, which can result in bearing damage and failure. More
Tech Feature: Servicing Ford's 3.0L Engine
The 3.0L Duratec V6 was introduced in 1996 to replace the aging 3.8L V6 in the Ford Taurus and Mercury Sable. Unlike its conventional pushrod predecessor, the 3.0L V6 has dual overhead cams, four valves per cylinder and an aluminum block with cast-iron cylinder liners. More
Nissan Tech Tip: DTC for Variable Valve Timing Control Function
On any 1996-2009 vehicle with variable valve timing, if the MIL is on with any of the following DTCs stored: P0011, P0014, P0021, P0024, P1110 or P1135, do not replace the variable valve timing solenoid valve or the sprocket(s) without performing the complete diagnosis indicated in the EC section of the service manual. More
Nissan Tech Tip: DTC For Variable Valve Timing Control Function
On any 1996-2009 vehicle with variable vale timing, if the MIL is on with any of the following DTCs stored: P0011, P0014, P0021, P0024, P1110 or P1135, do not replace the variable valve timing solenoid valve or the sprocket(s) without performing the complete diagnosis indicated in the EC section of the service manual. More
Tech Tip: GM Drivers Rattled By Engine Noise
Some GM truck, SUV and minivan owners may complain about a rattle-type noise coming from the engine area at approximately 1,800 to 2,200 rpm. The rattle-type noise may be caused by torsional vibration of the balance shaft. To fix the problem, follow the service procedure below for installing a new tensioner assembly kit. More
Gearing Up for Timing Belt and Chain Work
The best time for a timing belt or chain to be replaced is before it fails. Technical Editor Larry Carley discusses items to consider when timing belt or chain work arrives in your shop. More
Tech Tip: Honda Engine Service Essentials
While engine-related complaints aren't common on Honda's line of vehicles, problems may still arise from time to time. Import Specialist Contributor Bob Dowie walks you through head gasket repair, from diagnosis to estimating the job to gasket replacement, and also discusses the intricacies of timing belt replacement .... More
 
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