Checking into Mode $06
Mode 06 is the actual system test data that OBD II looks at when it decides to set a pending code or a current fault code. If the test data is within the limits established by the vehicle manufacturer, the item gets a PASS and no codes are set. But if a value is out of range, OBD II flags it with a FAIL and keeps an eye on the component until the system monitor has run at least twice. Then, if the problem is still there, a DTC is set and the MIL light comes on.
Saab 5-Speed Tranny and Clutch Repair
When Saab first introduced the 9000-model lineup in 1986, the gearbox was mounted transversely in the car. It was designed in this way for effective cooling and to provide the shortest possible path for the power flow to the wheels. All Saab transmissions have five forward speeds and reverse – all of which are synchronized.
When it’s Time for a Rebuilt Engine Installation
I noticed the Toyota 4WD truck as soon as I turned into the parking lot on Monday morning. I knew the owner because we’d been servicing his vehicles for a number of years, and I was always impressed by how clean and straight the truck was for its age. It was parked kind of crooked,
Toyota Chassis & Suspension
Toyota builds some of the most durable cars and trucks on the market. And, there are models for every segment of the population, from eco models that only exhaust drinkable water into the atmosphere, to large luxury models in the Lexus line. With that said, the fact is, there will still be components that can
Don’t Be in the Dark About Vehicle Lighting Issues
With Daylight Saving Time (DST) taking effect at the end of October in most of the U.S., darkness falls a little sooner. However, with less light comes more opportunity for your shop. In my opinion, vehicle lighting is an overlooked service. While driving, I often notice many vehicles that have lighting systems that are not
Searching for the Diagnostic Path
Most recently, I’ve found myself dealing with an increasing number of random, multiple-code complaints that involve computer operating strategies and networking communications issues in which the multiple trouble codes or DTCs tend to be symptomatic, rather than indicative, of a component failure. A basic illustration of what I’m talking about is a simple DTC 44,
A Tutorial in Hyundai Driveability
Diagnosing a driveability problem starts with the customer interview. When you are able to obtain the proper details about the vehicle’s symptoms, you will be able to diagnose the source of the problem more efficiently. Clues provided by the customer, such as “vehicle starts but runs rough until warm; worse when wet,” is invaluable information
Ending a Volvo Head Gasket Leak
Volvo engines have always been noted for their durability and long-term, trouble-free operation. But just like any internal combustion engine, they could develop head gasket problems that stem from owner neglect or the engine design. This article will detail the diagnostic process and procedures for replacing the head gasket in the most common Volvo engine
The Lube, Oil and Filter Market
As with everything else under the automotive sun, technology is changing the lube, oil and filter market. To be more specific, modern technology is making it possible to use the vehicle’s on-board engine management system to mathematically determine the length of an oil change interval. At the most basic level, the PCM simply adds up
GM Timing Belt & Chain Service
Some overhead cam engines in General Motors vehicles use timing belts to drive the cam (the 2.0L for example), some use chains (2.3L Quad Four, Cadillac’s Northstar dual overhead cam 4.6L V8, the Aurora Northstar 4.0L V8 and Chevy’s Vortec 4200 inline six), and some use a combination of both (Chevrolet’s 3.4L V6). The rest