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I just got my Blazer back from a shop because my front axle wouldn't engage, it seems to happen every year when I start needing 4 wheel drive. The thing that has been the problem is a vacuum actuator under the battery box that engages the front axle and it ruptures the diaphragm and stops working. The same thing happened this time but there was an added twist, it wasn't getting vacuum from the transfer case because in a recent transmission rebuild the hose connector was plugged in backward. Good luck on fixing the problem, I feel sure it is the diaphragm under the Battery box.
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∙ 15y ago
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Ford 2003 f350 4wd won't engage?
Most four-wheel-drive vehicles are controlled by the transfer case. The transfer case has many years in it. A bad year in the transfer case will cause the vehicle not to engage.
Why does your 4 wheel drive not engage?
check the wires to the transfer case, what year/model
Can you engage your 4x4 by not using the electronic push button?
No. The buttons operate the shift motor on the transfer case. The only way would be to swap in a manual transfer case.
How do you engage front end on 1987 wrangler?
It should engage when you shift the transfer-case onto 4-hi,or lo. It is actuated by a vacuum valve. If it isn't locking in,then you have either a vacuum leak,the diaphram(on the axle housing) is bad,or the mechanism on transfer-case is defective.
How do you fix a 1996 Chevy S10 Blazer transfer case?
there are many things that could potentially be wrong with your case. can u engage your 4wheel?
Your transfer caseon your 1989 jeep grand wagoneer will not engage?
If the shift lever on the floor won't move to engage there is most likely a linkage problem. If the linkage seems to move and you shift the lever under the dash from 2wd to 4wd and the transfer case does not engage look for a vacuum problem. the lines can be very brittle and break easily. There is a vacuum motor on the transfer case that must work in order to engage the 4wd. if all of these seem to work then the problem is likely to be internal.
What would cause the transfer case on a 1996 sliverado not engage?
do you engage 4WD manually or via the button on the dash? if its the latter then your actuator switch is probably bad. tweek
Why will 4 low engage and 4 high will not engage on a 1988 Chevy blazer?
This has a vaccum operated servo; you probably have a vaccum line that has come off to the transfer case.
97 gmc truck 4x4 does not work light flashes but does not engage?
it could be your transfer case, my need to be rebuilt.
How do you engage 4WD in 2001 Wrangler?
Depends on if you have the electronic or manual transfer case. The electronic ones, they advertise as "shift on the fly" capable, but this is a really bad idea. Either way, put the vehicle in neutral... if you have manual locking hubs, engage the parking brake and lock the hubs by rotating them clockwise to the "lock" position. Then, if you have the manual transfer case, you pull the transfer case lever either to the 4HI or 4LO position... if you have the electronic transfer case, push the button either for 4HI or 4LO.
Why doesn't 4wd not engage with hubs locked in and transfer case engaged in 4wd 2003 F-250 powerstroke?
You'll most probably need a new transfer case motor. it's the same thing as a transfer case actuator on a GM brand but just called differently.
Cant engage 4 wheel drive 1994 Toyota T100 pickup?
You may need to check your transfer case
