Tech Tip: Shim Calms Chirping Noises in Honda Models
Some Honda owners may complain of a chirp from the lower timing belt area. The noise is most often noticed at idle, usually after the engine has warmed up. The probable cause is the idler pulley mounting surface is tilted, causing the edge of the timing belt to rub against the side of the pulser flange on the drive pulley (gear).
Tech Tip: Honda’s V6 Engine Leaks Oil from Front/Middle/Rear
If oil is leaking from the front, middle or rear of one of the above engines, it may be due to the cast aluminum engine block may be porous in spots. Depending on the location of the leak, seal it with JB Weld or 3-Bond-coated sealing bolts.
Tech Feature: Valve Timing Terror Tales
While a lot has been written about timing belt replacement intervals, not a lot has been written about diagnosing timing belt and valve timing-related driveability complaints. In this article, Gary Goms reports that he is beginning to see more driveability problems caused by faulty valve timing.
Tech Tip: Dozens of Additional Vehicle Models Now Factory-Equipped with OAD Decouplers
Dozens of the latest vehicle models from domestic and import manufacturers are now factory equipped with overrunning alternator decouplers (OAD). The rapidly growing popularity of this sophisticated technology – now featured on more than 60 popular applications – is changing the way parts providers and repair professionals specify alternators, belts and pulleys for replacement applications.
Tech Feature: Detecting Misfires in OBD II Engines
With OBD II, there’s no missing misfires. Most engine control systems with OBD II monitor the speed of the crankshaft between cylinder firings to detect misfires. The powertrain control module (PCM) notes the relative position of the crankshaft via the crankshaft position sensor (CKP) each time a trigger pulse is sent to the ignition system.
Kia Preventive Maintenance: Chassis, Engine & Brake Repairs
More Kias on the road means more repair and maintenance opportunities for the import car specialist, so don’t let them pass you by. In this article, Bob Dowie focuses on the most common problems and maintenance items that have them finding their way into your bays – like check engine light, brake and chassis repairs.
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.
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