Jump to content


Faulty VSV causes coughing on cold start


Platypus

Recommended Posts

I found that a broken plastic nipple for the Vacuum Switching valve (VSV) on the front of the air box caused coughing on cold start if the vehicle had been sitting a day or two.

At times it would not start first time at all.

It seems that some time ago, someone had inadvertantly broken the plastic nipple right on the air intake box - which can't be seen as the rubber hose covers the issue.

In my case, a mechanic had superglued the rubber hose to the box body without repairing the nipple, which is really impossible to glue without sleeving it.

Recently, enough was enough after taking it to my local dealer who couldn't replicate the problem, I had a shot at repairing it.

Using a piece of a stainless steel 18 gauge hypodermic needle (which had the perfect internal diameter), i drilled out the broken plastic nipple and the part of the air box then superglued the assembly - it sealed perfectly.

Some Inox on the rubber hose and the repair was done.

What I can't find is a repair manual for the TRD - even Grand Motors tell me that TRD don't supply one - how do they do their repairs?

I have attached a Camry Manual for the Intake control system - I coundn't find one for the TRD but the Camry is the same.

If there is a repair manual out there please post

Toyota Vacuum Switching Valve.pdf

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.




  • Join The Club

    Join the Toyota Owners Club and be part of the Community. It's FREE!

  • Latest Postings

    1. 0

      1mzfe fuel consumption at 15+L/100km

    2. 0

      2013 Rav4

    3. 4

      Concerns about Fuel Consumption in Kluger Hybrid

    4. 29

      toyota 700

    5. 4

      200 series Sahara Pre-collision system malfunction

    6. 1

      2018 Landcruiser 200 Sahara Heavy steering

    7. 0

      Always get a second opinion

    8. 29

      toyota 700

    9. 29

      toyota 700

×
×
  • Create New...

Forums


News


Membership