Blinking 4x4 dash light

[Gizmo42]

I think the solenoids or on the firewall by the brake booster. They might have unplugged it, pulled a vacuum hose loose, pinched one, or could be coincidence. The VSS isnt very cheap, $116 from the dealer you could probably get one a bit cheaper from St. Charles Isuzu or pm UNDERDOG on planetisuzoo.com he works for dealer and gives discounts. I have seen one post before where someone found the 4way vacuum line splitter (its in the same area) broken. That would have to probably be a salvage yard item, I dont think its available from the dealer.

The problem could also be the computer not telling the solenoids to switch but I would think you would have good vacuum on one of the lines then.

[tnobori1]

so I think I traced the vacuum lines back correctly... these are the two vacuum lines and are not connected to anything. Did I trace them back right?

[Gizmo42]

Unless someone switched hoses around then no. Those would be breather tubes. One is for the front diff, dont know what the other one is for. The vacuum switching valves are directly above that though. They are actually held there by the 4 way block I told you about that someone found broken on theirs. Check it to make sure its ok, then check for vacuum on the line going into it. If its ok then the problem is in the valves, you can recheck for vacuum in 2wd and 4wd right at the valve and see if you loose vacuum there (looks like the one with the blue plug is 2wd and grey plug is 4wd). If you dont have vacuum going into the 4 way block then start following it back to the intake manifold checking for vacuum till you find the problem part. You should also check for vacuum on the vacuum tank wich is right above the axle actuator, if that line came loose you could be losing vacuum to everything. I forgot about it.

Here is a diagram to help you with tracing things out..

[tnobori1]

Okay, I think I may have found it. I can't believe I missed it before, but when I had the truck on I could hear a loud sucking sound inside the engine bay. I had seen this hose unattached before, but assumed it was nothing. I put my finger on it and got a lot of vacuum from it. Where does it go and how do I connect it? Is it supposed to go to the inlet manifold? What does that look like?

[Gizmo42]

That open line should plug into the end of the solenoid with the red plug.



I dont know what that solenoid is for. Could definatly be a problem with the 4wd system not getting enough vacuum though.

[tnobori1]

Thanks so much Gizmo! That was the problem. The stupid thing wasn't plugged in... what kind of a shop misses that detail? The worst part is that the guy went out of business (I wonder why) and my lifetime warranty means jack s#%t now. The blinking stopped, and my truck is running better now too! Thanks for all of your help. I work for Auto Trader, so if you ever need an ad run, I will happily do it for free. I know that's not much, let me know if there's anything I can do.

Tak

[Gizmo42]

Not a problem. Glad I could help and got it solved.

jimbar
Any progress on yours?

[jimbar]

Havent used 4 wheel drive lately so I havent messed with it..but now it looks like im going to give it a shot. I'll let ya know how it turns out.

[Uncle Pow]

yep, just got a call from the repair shop.... I've got a bad actuator.... CRAP! And I was hoping to take it to the beach next weekend.

Edit:
Dealership wants $530 for a new one..... Anyone want to buy a '98 2WD V6 Rodeo?

[Gizmo42]

Dealership wants $530 for a new one.

Is that just for the part or installed? www.slhondaparts.com lists it for $176 for a new one.

[AlexDH87]

Any chance somebody can talk me through this problem with a 01 honda passport? where do i find the actuator to start my problem solving?

[Cat Fuzz]

The actuator in on the front axle, left side and has two vacuum lines and a wired plug attached.