Quote:
|
Originally Posted by Brian Carlton
The valve operates on vacuum. If the valve is working properly and you disconnect and plug the vacuum line, the valve can't open. The blocking plate simply allows you to remove the valve.
However, if the valve is mechanically stuck open, it doesn't need any vacuum to open and removal of the vacuum line won't accomplish anything. You must remove and clean up the valve so that it is unstuck. Or, you must use the blocking plate.
Plugging the vacuum line is helpful most of the time and harmless if the valve is stuck open.  |
Thanks Brian, for the thorough answer!
__________________
1987 300D, arctic white/palomino--314,000 miles
1978 240D 4-speed, Euro Delivery, light ivory/bamboo--370,000 miles
2005 Jeep Liberty CRD Limited, light khaki/slate--140,000 miles
2018 Chevy Cruze diesel, 6-speed manual, satin steel metallic/kalahari--19,000 miles
1982 Peugeot 505 diesel, 4-speed manual, blue/blue, 130,000 miles
1995 S320, black/parchment--34,000 miles (Dad's car)
|