Hi everyone,
After reading a ton of posts about the Thermactor and what controls it and
Spending hours poring over the 1984 Ford Emissions shop manual I have come to the
Conclusion….40 year old emission parts work about as well as nothing.
I never read so much and learned so little,
Now my problem, 2 years and 1300 miles ago, I replaced my 86-93 dual cats that I put on around 1993.
They were rattling, so I brought a 2 Cat Catco H-Pipe and installed it.
It has the air tube for the thermactor pump.
I decided this week to check out my Air pump system and found…, nothing held Vacuum and forget about the TAD and TAB solenoids
That according to the manual work off a timing controller/computer ???
The diverter valve that sends Air either to the heads or cats was shot,the vacuum line’s were nothing more than a Vacuum leak,and was only directing air to the heads.
I can’t even figure out how the dump valve works even though I found the vacuum solenoid on the drivers strut tower.., ya it still has its vacuum line and it’s plugged in…I mean how is it supposed to supply vacuum to the dump valve under load when there is no vacuum.
So I rigged the air pump to send air directly to my Cats all the time. It is purely as simple as I could make to try and save my cats.
No Vacuum lines anywhere… just air to the Catalytic converters.
Will this be a problem… I know there are great minds on this site.
Thanks,
Scott
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