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Author
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Topic: 74 Ghia
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martyleo
Journeyman Posts: 2
From: Houston
Registered: Jan 2003
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posted 01-22-2003 11:58 PM
   
I'm the same guy with the vinyl roof problem. I bought the car and it has verifiable 46k. The previous owner said he changed the filter and fluid in the tranny. You can put it in reverse and count to about 8-10 before it goes into gear. The same with the forward gear. Once it warms up, it actually shifts fine until the next morning. Is there any things to try BEFORE I bite the bullet on an overhaul? The fluid is clean and new.
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Maxwell_fax
Gearhead Posts: 221
From: Port Royal, PA, USA
Registered: Nov 2000
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posted 01-23-2003 04:18 AM
As far as I know... I there is an O-ring in the pump, I believe, that gets hard brittle with age and causes this symptom... Once it heats up and expands it'll seal up okay.. If I am right about it being in the pump it could be possible to just replace the O-ring, but there are still many other seals that are 25+ years old so one would probably be further ahead to have the trans gone over and freshened up... The FMX in my Gran Torino is now up to a count of 35 before it engages...  Damn these -4 degree mornings... Luckily the block heater helps this out a bit.. 
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NoBS
Journeyman Posts: 34
From:
Registered: Oct 2002
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posted 01-23-2003 08:09 PM
Another thing that can cause this is a plugged screen/ filter causing a restriction to the pump. It could also be several things adding up to this problem. Plugged screen, bad 'o' rings, worn pump, stickey valve body, low fluid.
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Maxwell_fax
Gearhead Posts: 221
From: Port Royal, PA, USA
Registered: Nov 2000
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posted 01-25-2003 05:49 AM
NoBs Has a good point about the screen... Before going too far I think I would pull the pan personally and see see what the screen looks like just in case the previous owner was BSing you about changing the filter and fluid... Also make sure the screen and valvebody are tight... And the major thing is that it has Type F tranny fluid in it.. Another thing to try is adjusting the bands... They should list the procedure for this in about any repair manual. I believe the low/reverse band is near the front on the passenger side of the trans, and the second gear band is near the middle of the driver side of the trans... But I cannot remember the specs for adjusting them...
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NoBS
Journeyman Posts: 34
From:
Registered: Oct 2002
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posted 01-25-2003 12:57 PM
Way back when I was young and dumb(er) the girl friend and I went to look at a mid '70's T-Bird. The seller said he had all the maintenance reciepts, I looked through them and was impressed. We/she bought the car. Then things started happening. I started going back through the reciepts. That's when I realized some 'reciepts' (more than I want to admit) were estimates. SonOfA B....... About the only way to tell if it's the proper ATF is to rub the fluid between your fingers. If your fingers want to 'stick' you have Type F, if they slip you have some other type of fluid. Not very scientific but who wants to pay for a spectroanylasis? Your problem could also be a modulator, or the lines running to the modulator. Aparently the modulator controols pressures inside the transmission so it's not too much a stretch to see where it might prevent the transmission from building pressure.
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Maxwell_fax
Gearhead Posts: 221
From: Port Royal, PA, USA
Registered: Nov 2000
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posted 01-26-2003 01:26 AM
AHHH I hate when that happens.. Had the same thing happen with a Mark IV I had bought... The milage was verified but I should have gone through the pile of papers more carefully.. At least I had a good list of everything that was about to go wrong..
And I felt a little better knowing that the body shop that painted it ripped them off something fierce.. The new fenders they installed and charged for were just the old ones filled with bondo.. I'm glad I got it cheap even for the condition it was really in..The modulator doesn't really do anything for initial engagement... It controls the upshifts and down shifts.. But it still can't hurt to check it... It is nothing but a little vacuum diaphram on the back to the trans with a vac line going to it.. If you remove the vac line from the modulator and fluid runs out, replace it.. IF nothing runs out and you have a hand held vacuum pump (who has those luxuries? With the lack of better words suck on the line) see if it holds vacuum..
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