Questions & Answers for: Chevrolet vac

...off"indicater lamp issue,and no 4x-high. these cars have many components which operate the "4x4". 1)vac diaphram under batt. 2)switch on front diff. 3)vac switch on top of t-case 4)acuator motor on ...

...off the gas my rpms drop and when i step on the gas the rpms go back up then kicks in These have a vac.control from rear of trans. on pass. side to the back of carb...check to see if it rotted ...

...though blower is running, but max blower is inop. Apparently the vent valves don't open. They are vac. controled. The leak could be behind the controls, but first check under the hood usually near ...

...and heater air blows only in windshield vent 1997 chevrolet Lumina That means you lost your engine vacuum source and defroster mode is the default position. Check for the vac. line coming off engine ...

4 wheel drive will not engage check the vac. switch on the transfercase on the top of the transfercase on the driveshaft side there is 3 vac. hoses going to a switch remove the vac. hose harness and ...

... the AC, heater and everything else seems to be fine. It is a 2004 Silverado LT OK THIS IS EITHER A VACUUM PROBLEM OUR A VAC SOL.PROBLEM SO. FIRST CHECK VAC HOSES YOU WILL SEE THEM ON FIRE WALL CHECK ...

for brakes is on. Feels like there is no power assist. 1995 Chevrolet 2500 diesel pickup. check the vac yube on booster for vac. if none replace hose or connect. if good vac. then probably bad booster

...speed ok at higher rpm"s wow a 99 an oldie but a goodie , one that old id be looking at all the vac lines , for pin holes,worn spots and cracks , a vac leak will make engne run rough at idle and ...

...1996 is in for total fuel system replacement. ...my pump $300..........4 door. (canada) ...chek for vacuum leaks. cud be MAP sensor vac-line. There was a vac leak on my 96. @ or near brake master ...

...what style of 4 wheel drive. Once I have all that I can properly advise you on what to do 1st Check vac actuator under battery tray for tears, or leaks, and that the vac hose is connected. Replace if ...