2006-11-19 15:05:54 · 3 answers · asked by dportcin66 1 in Cars & Transportation ➔ Car Makes ➔ GMC
look at it, for the Cat's sake. See any vaccume hoses running to it?
2006-11-19 15:09:48 · answer #1 · answered by Ryan 4 · 0⤊ 1⤋
listen it does use a vacuum modulator, but it is only function is to raise and lower line pressure This trans also uses elec solenoids to shift it. 4T65-E used in later models did not have a modulator it used electronic PC solenoid to reg pressure.
2006-11-20 05:38:43 · answer #2 · answered by deltech 4 · 1⤊ 0⤋
i own a repair shop,and they don't use a modulator any more,there all computer controlled now,and this one has a shift solenoid on it to help it shift ,and also a throttle pressure control cable also that helps govern the way it shifts,,but no more modulators,if its shifting bad it might be time for a good fluid and filter change on it ,this may help it some,,good luck,i hope his help,s.,and happy Thanksgiving.
2006-11-19 15:17:31 · answer #3 · answered by dodge man 7 · 0⤊ 1⤋