How is the modulator connected to the engine?
The modulator is connected to the engine through a combination of steel tubing and rubber hoses. When higher amounts of engine vacuum act on the modulator, the transmission begins to shift earlier and softer. As engine loads increase, vacuum diminishes, causing the transmission to shift later…
How does engine vacuum affect the modulator valve?
When higher amounts of engine vacuum act on the modulator, the transmission begins to shift earlier and softer. As engine loads increase, vacuum diminishes, causing the transmission to shift later and more firmly.
What happens when the modulator valve in a car ruptures?
When the diaphragm inside the modulator valve ruptures, transmission fluid is drawn up to the engine like liquid through a straw via the steel vacuum tubing. When burned in the engine, this transmission fluid produces blue smoke from the tailpipe.
How can you tell when your modulator valve is bad?
Check the exhaust of the car for blue-colored smoke. When the diaphragm inside the modulator valve ruptures, transmission fluid is drawn up to the engine like liquid through a straw via the steel vacuum tubing.
Where is the S / O valve on a Mercedes Benz?
The s/o valve is cheap – less than $50, but the problem is 95% of the time a vacum leak in the switch over valve itself, which is located on the side of the transmission. This part is about $250. You can drive your car like this with no problem, but it will not pass the smog test.
What causes check engine light to come on in 1994 e320?
The check engine light has come on in my 1994 E320 and the cause is a faulty Upshift Delay Switch Over Valve. I have three questions. 1. The car runs fine with no other problems. I understand that this has something to do with heating the catalytic converter in cold weather. Is this something that needs to be fixed or can I just ignore it? 2.
How does the DME work on a Mercedes Benz?
This important sensor tells the car’s computer where the flywheel is located in relation to the combustion cycle. The DME takes the signals from both the cam position sensor and crankshaft position sensor, and calculates when to fire the fuel injectors and spark plugs.
How to replace crankshaft sensor on Mercedes W210?
Once released, pull the electrical connector up and off the sensor. You’ll now need at least a 2′ extension in a 1/4″ drive with a swivel on the end and a 5mm hex bit to reach the sensor retaining bolt. It will take a bit of time to seat the bit inside the hex bolt.