A place for general chat about the Jimny. Please make sure you post in the correct section on the site, this way it keeps the site tidy AND ensures you get a more relevant answer.
Suppliers/Dealers or anyone selling with a commercial view in mind CANNOT post here unless responding to a specific request of a member in a "wanted" post.
Suppliers include people "breaking for spares" on a regular basis, when purchasing spares members should ask a supplier what they contribute to the running of the forum particularly if contacted by a Private Message
Suppliers or Members who have contributed to the forum can be identifed by the logo.
Suppliers/Dealers or anyone selling with a commercial view in mind CANNOT post here unless responding to a specific request of a member in a "wanted" post.
Suppliers include people "breaking for spares" on a regular basis, when purchasing spares members should ask a supplier what they contribute to the running of the forum particularly if contacted by a Private Message
Suppliers or Members who have contributed to the forum can be identifed by the logo.
Help - Vacuum tube disconnected
- jackonlyjack
-
- Away
- Platinum Member
-
Registered
Less
More
- Posts: 2960
- Thank you received: 664
29 Sep 2024 10:57 #257730
by jackonlyjack
Replied by jackonlyjack on topic Help - Vacuum tube disconnected
Just a thought does it have vac hubs or manual hubs fitted
Please Log in or Create an account to join the conversation.
29 Sep 2024 11:12 - 29 Sep 2024 11:17 #257731
by facade
The test is to jack up only one front wheel and try to rotate it, if it only moves a few degrees in each direction then it is in 4WD.
If there is a bit of resistance but it turns, and the front propshaft is rotating then the hubs are in 4WD- double check by letting it down and trying to turn the front propshaft, if it won't turn now then the hubs are in 4wd but not the transfer.
(for completeness, if the front wheel will rotate, but if you try and rotate the front propshaft it wont turn, then the transfer is in 4WD but not the hubs. Do take precautions if you crawl underneath when it is jacked up, but it can't fall very far with the wheel still on)
I'd reconnect that hose, run the engine at idle for a couple of minutes to build some vacuum in the tank and then try jabbing the 4WD & 2WD buttons a couple of times to try and get it to reset itself.
If it suddenly breaks, go back to the last thing that you did before it broke and start looking there
Replied by facade on topic Help - Vacuum tube disconnected
How do you know that it is in 4WD?I've just lifted the car and I've checked, it is definitely in 4Wd. It didn't sound 'off' while I was driving... either I am dumb or very lucky, though I'm feeling it is probably the former. Thank you for the advice though.
The test is to jack up only one front wheel and try to rotate it, if it only moves a few degrees in each direction then it is in 4WD.
If there is a bit of resistance but it turns, and the front propshaft is rotating then the hubs are in 4WD- double check by letting it down and trying to turn the front propshaft, if it won't turn now then the hubs are in 4wd but not the transfer.
(for completeness, if the front wheel will rotate, but if you try and rotate the front propshaft it wont turn, then the transfer is in 4WD but not the hubs. Do take precautions if you crawl underneath when it is jacked up, but it can't fall very far with the wheel still on)
I'd reconnect that hose, run the engine at idle for a couple of minutes to build some vacuum in the tank and then try jabbing the 4WD & 2WD buttons a couple of times to try and get it to reset itself.
If it suddenly breaks, go back to the last thing that you did before it broke and start looking there

Last edit: 29 Sep 2024 11:17 by facade.
Please Log in or Create an account to join the conversation.
30 Sep 2024 08:20 #257741
by Archie15
Replied by Archie15 on topic Help - Vacuum tube disconnected
Yep, definitely in 4wd. I'll try and reattach the hose and run the engine again, as I have tried this before but it didn't seem to make a difference. Is it possible that the hose might have inhaled some dust/dirt and blocked?
Please Log in or Create an account to join the conversation.
30 Sep 2024 08:22 #257742
by Archie15
Replied by Archie15 on topic Help - Vacuum tube disconnected
Vac hubs I believe, would I be able to tell the difference by looking at them?
Please Log in or Create an account to join the conversation.
Less
More
- Posts: 1945
- Thank you received: 505
30 Sep 2024 08:34 #257743
by DrRobin
2020 blue SZ5 (one of the last to be registered in the UK)
Ex 2011 Blue Jimny SZ4
Northumberland Jimny Blog
Replied by DrRobin on topic Help - Vacuum tube disconnected
The vac hubs are painted black, the manual hubs have a rotary switch on them to engage/disengage the front wheels.
If you have a flashing 4WD light it usually means you didn’t obtain a vacuum and therefore it’s not in 4WD.
Did you try the tests mentioned before, jack a wheel and see if it turns, repeat for the other and then try to turn the drive shaft to the front wheels?
It’s possible you have locked front hubs, but the transfer case is in 2WD.
You might want to have a look at the wiki if you haven’t already
www.bigjimny.com/mediawiki/index.php/4WD...-_emergency_measures
www.bigjimny.com/mediawiki/index.php/4WD...ion_system_operation
Robin
If you have a flashing 4WD light it usually means you didn’t obtain a vacuum and therefore it’s not in 4WD.
Did you try the tests mentioned before, jack a wheel and see if it turns, repeat for the other and then try to turn the drive shaft to the front wheels?
It’s possible you have locked front hubs, but the transfer case is in 2WD.
You might want to have a look at the wiki if you haven’t already
www.bigjimny.com/mediawiki/index.php/4WD...-_emergency_measures
www.bigjimny.com/mediawiki/index.php/4WD...ion_system_operation
Robin
2020 blue SZ5 (one of the last to be registered in the UK)
Ex 2011 Blue Jimny SZ4
Northumberland Jimny Blog
Please Log in or Create an account to join the conversation.
30 Sep 2024 14:05 #257749
by Motacilla
Replied by Motacilla on topic Help - Vacuum tube disconnected
Crucial distinction which might have not been clear from the above discussion. Thanks for highlighting thisIt’s possible you have locked front hubs, but the transfer case is in 2WD.
Please Log in or Create an account to join the conversation.
Time to create page: 0.168 seconds