wrenden
97 Blazer: There is a ten second delay going into and out of 4Hi and when it does go it makes a loud bang and feels like I just drove over a large chuck hole. Sounds like an expensive problem.
Slamming in and out of 4Hi.
Nov 03, 2006
3 Replies
Might be a sticky vacuum pump. Not sure but a good place to start looking.
There is no vacum pump. Iit uses manifold vacum via a solenoid to route it to a vacum servo that disconects the front axle actuator. It can take several second to cyel sometime and you might check feed line for leaks. Also if it is push button 4x4, you could have a bad encoder motor that shifts Tcase too.
----------------- TheSnoMan.com
Well it's at the dealer now being diagnosed and I'm recharging my wallet; I'll re post what the damage is both mechanically and financial.
wrenden
Join the Discussion
Have something to add? Share your thoughts — no account required.
Didn't find your answer?
Ask the community — no account required