The code might set again when the engine is cranked. This video is sponsored by Auto Value and Bumper to Bumper.
Curing this code will require more than the timing chain. This video is sponsored by Auto Value and Bumper to Bumper.
Subaru has updated the procedures and tools needed to enhance retention of the oil seal and eliminate any chance of blocking the oil return passages in the timing chain cover.
Andrew Markel reveals the details on crankshaft operation and how the power pulses cause vibration and stress on the belt and the components it is attached to. Sponsored by Auto Value and Bumper to Bumper.
This month, we’ll be taking a look at a 2003 four-cylinder Accord that came in with a check engine light complaint, but no reports of driveability issues. It was due for a New York state inspection, so it had to be repaired. The code was persistent, setting itself consistently on the second startup.
The majority of the Subarus towed into his shop with timing belt failure can often be traced to an idler pulley failure that resulted in the belt coming off, says Bob Dowie, who advises to replace the pulleys if you have any doubt about their condition, notice grease coming out of them, or if there is roughness or noise when they are spun.
Since belts are a service item, timing belt service needs to be part of a good maintenance plan. We recommend that the timing belt be replaced, along with the water pump and accessory drive belts, at 90,000-100,000 miles. If the customer has budget concerns, we’ll explain why we recommend the pump replacement and let them take the gamble that it will last another 100,000 miles – with the understanding that if the pump should fail, this labor-intensive job will have to be redone.
These tips outline the belt replacement for the popular 2.2- and 2.3-liter Accord engines. The other Honda engines are similar, but don’t require the balance belt. They shouldn’t present any challenge to the experienced tech, but there are some things to keep in mind as you tackle these jobs.
Using an improper wheel is most likely to blame for metal particles lodging in abrasive grains or in wheel pores. Try using a wheel with a coarser grit or more open structure to provide chip clearance. Also try using more coolant. Faulty dressing could be another cause of wheel loading. Examine your diamond tool and replace it if it appears to be worn. A worn diamond will appear rounded.
Oil may leak from the rear crankshaft seal after seal replacement due to the seal lip rolling while installing the new seal. This condition affects 1996 A4 with 2.8L V6 (Engine Code AFC). When replacing the seal, the new seal is supplied pre-installed in the flange.
Hall effect crankshaft position (CKP) and camshaft position (CMP) sensors are critical components of an engine management system. The inputs they provide enable the powertrain control module (PCM) to determine engine speed and position including where a given cylinder is within the four-stroke cycle.
Thanks to the increasing reliability of modern vehicles, most diagnostic technicians are seeing fewer pattern-failure driveability complaints. For that reason, many techs won’t gamble expensive shop time chasing an illusive no-code driveability complaint. Instead, many will write “no problem found” on the repair order and move on to the next vehicle. Unfortunately, at some point in time, the intermittent, no-code driveability will either be solved or the vehicle will be traded or sold for scrap.