Crazy day- VSV BJ74 (1 Viewer)

[2rivers]

Howdy,

Went to check out that BJ75 I found awhile ago. I decided I'd take a short cut on logging roads. Happily enjoying the scenery and my Cruiser when it just shut off! WTF!!! Pulled over, started up again, drove off again.....seconds later shut off again. Repeate several more times. NOW Im gettin concerned. Trying to keep my head I do some trouble shooting - I knew I was getting fuel. Nobody around - logging done for now, 100 kms+ from town, minim al tools. Long story short - I had been blasting through some water holes and think I got some minute moisture on my vaccum switching valve. So it was shutting my motor off!!!!!

I remembered a discssion on here, about the VSV so I pulled off the hose that goes to the diaprgam thing that controls the shut off in the air intake and WOOHOO problem sloved. I thought for a 1/2 hr I was screwed and had visions of coming back today and have a burnt out shell left, or just as worse nothing at all! so CHEERS to this site and the knowledge collectively passing through!!!

I was wondering though, since I have an auto tranny (never had one before now), if i had gotten towed, would I have to disconnect my rear driveshaft inorder to not burn out my transmission?

Man its nice to see my mud covered 74 in my driveway. I almost felt sick to my stomak during this time yesterday - I couldnt believe my Cruiser had broke down. Lesson learned I guess. Now I guess Ill phone G&S for a new VSV ....is there no way to overhaul the existing one before I shell out $200

If there is a weak link on a BJ74 I'd say this is it. I will repostion the new one also and maybe waterproof it somehow.

Thnks again guys,
johhny in Smithers

89 BJ74 auto, bare bones, 132,000 kms

 

[Greg_B]

Dry out the VSV and perhaps it will be okay. Relocation is good.

I dinna kin on the auto tranny. What about simply putting the t-case in N for towing?

gb

 

[2rivers]

Hi Greg, yup , putting the Tcase in N would prolly work real well! Never thought of that ...duh.

 

[Stone]

Yup...gonna move my VSV out of harm's way also. It's in a ridiculous spot. When mine gets wet, the engine won't shut off. Like Greg says, just let is dry out and see. Sheldon did this to his BJ70 and it seemed to solve his problems.

 

[2rivers]

Ridiculous spot is right Stone. I cant figure out how just a tiny bit of moisture made this thing act up.....talk about sensitive. At least I know where the issue is anyways. The bizzare thing was when my truckwas dead on the side of the road, it started once and ran like it was on 2 cyls - bleching blue/white smoke and I could smell raw fuel and hear it missing at the tailpipe. At first I thought it was my inj pump gone byebye but later I figure the air shutter was probably open 1/4 the way or someting like that and the VSV couldnt make up it mind what to do.

johnny