Tech Tip: VW’s Check Engine Light is On with Fault Code P0411
When diagnosing various VW and Audi vehicles, the Check Engine Light (MIL) is on and fault code P0411 (16795) is stored in the fault memory.
Tech Tip: VW’s MIL is On, with DTCs P0087/P1093 or P2293
This condition could be caused by excessive wear of the intake camshaft lobe that drives the high pressure fuel pump. The wear limits maximum pump piston lift, causing fuel rail pressure fluctuations. The wear on the camshaft lobe can also lead to wear on the base of the high pressure fuel pump cam follower.
Tech Tip: VW 2.8L Engine Running too Hot
While not all engine overheating conditions are related to improper engine builds, some 1999 Volkswagen Jetta GLS 2.8L engines overheat even after the thermostat has been replaced. First, check the actual temperature of the radiator and compare it to the temperature of the cylinder head.
Tech Tip: Humming Sound from Front of VW During Cornering
A customer states that a humming sound is coming from the front of the vehicle on turns in vehicles equipped with 02J or 0A4 manual five-speed transmission. The hum may be more noticeable during slow speed turning maneuvers with the steering wheel almost to full travel. The hum diminishes when the steering wheel is straight.
Tech Tip: Poor Throttle Response on VW’s Diesel Engine
Condition: Poor throttle response on 1.9L TDI equipped vehicle. Models affected include 1999-2003 Golf and Jetta, 2001-’03 Jetta Wagon and 1998-2003 New Beetle (all ALH, 1.9L TDI engines).
Tech Tip: Jetta’s Engine Running too Hot
If you encounter a 1999 Volkswagen Jetta GLS 2.8L engine that overheats and the engine thermostat has been replaced, check the actual temperature of the radiator and compare it to the temperature of the cylinder head. If the radiator remains significantly cooler than the cylinder head, or if no ….
Tech Tip: VW Poor Throttle Response
Some 1998-2003 Golf, Jetta, Jetta Wagon and New Beetle models with 1.9L TDI may exhibit poor throttle response. Perform Steps 1 through 9. If any of these steps reveal a problem, repair or adjust as necessary and then road test the vehicle to determine if the customer concern has been eliminated prior to continuing with step 10 ….
Volkswagen Tech Tip: Poor Throttle Response on Golf, Jetta and Beetle Models
Some 1998-2003 Golf, Jetta, Jetta Wagon and new Beetle models with 1.9L TDI may exhibit poor throttle response. The following Tech Tip from ALLDATA will help diagnose and repair this condition ….
Tech Feature: Diesel Service… VW Glow Plugs
Diesels are up to 30% more efficient than gasoline engines because they use high compression to ignite the fuel rather than spark plugs. High-pressure fuel injectors spray fuel directly into the combustion chambers when the pistons near top dead center. The heat of compression, combined with residual heat in the piston and cylinder head from
Tech Tip: VW’s Transmission May Be Leaking Around Pan Gasket
If the transmission appears to be leaking around the ATF pan gasket on New Golf, New Jetta, New Beetle and Cabrio models with four-speed automatic transmission, in most cases the leak is not caused by the ATF pan gasket, but by the main line pressure plug.