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Make sure the valve on the firewall is working right and is not clogged.


That's where I'd look first. I ended up replacing my '88 valve with one from a newer model truck that mounts a little bit differently. The newer style valve seemed to look much cleaner in design and operation to me. It took some very slight tweaking to get her in place, but it will work and can be done. <img src="/forums/images/graemlins/kewl.gif" alt="" />

'88 X-Cab 4x4
'00 4Runner
'91 Talon TSi
slacker Mitsu tech