rear drivers side of tranny,likely a 700-r4 trans
it is located on transmission right hand side just above trans pan and covered by heat shield for exhaust.
NoNo
yes it does but i do not know where it goes to, i have a 98 and my vacuum line came off and is still connnected to the tranny
I do not know about a 1988 Isuzu PU, but I have a 1992 and the vacuum diagram is on the underside of the hood. You may need to clean it up a bit to see it. I did. Hope this helps. morempg2u
Check for vacuum leak--either under dash or in engine compartment Check for bad vacuum motors under dash Defrost is the default position for this system There is a vacuum resovoir located behind your battery , it is for this condition. When you accel your engine doesn't produce vacuum due to the throttle plate being open so a resovoir is there to hold a vacuum reserve so that when there is low vacuum produced by the engine there will be reserve to hold the vacuum motor applied preventing the air from changing direction in your dash. When there is no vacuum the direction is at the defrost vents if you have a broken hose or no vacuum your ac would blow out the defrost all the time But since it happens when you accel it sounds like your vacuum resovoir is cracked thus not allowing it to hold a vacuum
It doesn't have one its electronic
That transmission is all computer controlled. No vacuum lines on it.
The transmission does not have a vacuum modulator.The transmission does not have a vacuum modulator.
Check for a vacuum module on the transmission. If you see a vacuum line between the transmission and engine, disconnect the line and look for transmission fluid inside the line. If you see transmission fluid in the line, replace the vacuum module. It probably has a split or damaged diaphragm inside.
Should be at the side of transmission with a vacuum line attached to it
No such part exists on a Durango.
no, it uses a cable from the carb linkage to controll downshifts
That year model did not have a modulator valve on the transmission.
No, Not on that year. That trans. is computer controled.
No it does not. It is controled by the PCM / Power Train Controll module, COMPUTER
The transmission is controled by the computer. If it will not shift, there is a problem. There is no (vacuum) modulator. Take the car to a dealer or a good transmission shop. Be prepared to have it rebuilt or replaced.
No it does not. It uses a Chrysler 727 automatic that uses a shift modulator rod that comes down from the carburator. The 70's vintage fullsize Jeeps use a GM Turbo 400 that had a vacuum module...