Questions & Answers for: 2001 gmc jimmy vacuum lines

...GMC Jimmy makes a whining noise that seems to come from the transmission. It is 4-wheel drive. Plus, when I put it in 4-wheel drive, it runs okay at higher speeds but locks up when you are driving at ...

wheel low just blink. Thanks Barry Vacuum lines my friend. There is one under the battery that pulls a cable to lock the front differentials in. But also check to make sure each line is getting vacuum

...2001 GMC Jimmy is stuck in 4 Lo. It slipped into 4 Lo on its own and know won't change back into 2 WD. Not long before the check 4WD light came on and then "pop!' stuck in 4 Lo. i believe those are ...

2001 GMC Jimmy Idling rough My Jimmy started idling rough last week. Two codes popped up on the PCM...P0171 and P0300. P0171 only showed once, P0300 stays on PCM constantly. Everything I've done ...

jimmy is too new for it to be a vacuum line, it's probably an electrical input. my guess is that switch is not happening anymore and what you are now getting is a fail safe mode. will probably have to

in the dash and the vacuum hoses on the switch on the transfer case. the vacuum lines were dry rotted and leaking. we had our mechanic do it and all told was less than 500 bucks labor and tax included

...2001 jimmy When I move my selector to heat I just get cold are but everything checks out with the thermastat. check the vacuum lines under the hood to vac tank and check valve(older style sys) may ...

...jimmy had same problem. Found out flap broke inside heater core. Gmc had a default. If something breaks it goes to defrost as safety precaution. Or a vacum leak in a hose to heater. I am having the ...

...2001 model auto trans. It sounds like the transfer ase is working ok. My guess is the problem is vacuum related. Check all your vacuum lines for loose connections, rotted rubber, etc. There is one ...

...2001 GMC Jimmy 4.3 v6 4 wheel drive vacuum brake booster questions only> out and in. the manual says remove MC first , just that. the MC 2 lines go to the ABS modulator. sure. I guess you mean how ...