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1970 Door Can't Open

 
professorchris1
I love my Chevy Chevette!
Posts: 4
Joined: 02/11
Posted: 02/14/11 03:34 PM

My door is closed/locked.  Turning the key does nothing.  Turning the knob inside does nothing.  How do I fix this problem?  

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waynep7122
I mow my lawn and find Chevys
Posts: 1114
Joined: 08/09
Posted: 02/14/11 06:31 PM

usually when the doors won't unlock  its because one of the opening linkages is jammed slightly open...

have you ever tried to unlock a door when somebody is pulling on one of the handles...   thats where you are at...

i generally have to go in with the windows down..  with a piece of 3/16" welding rod..  bend and try to probe around to hit the lever from the outer handle where the rod drops through the latch assembly.. pushing down on that will sometimes allow the car door to open...  the last gm door that i had to probe took me half an hour or probing to get it open..

then i took the whole 9 yards out of the door .. soaked and cleaned it.. before greasing and putting it all back in..


this is still not an easy problem to fix..

i used to have a side marker lamp socket with a 194 bulb attached to an curly cord with a cigar lighter plug on the end.. so i could put it into the lighter.. and drop the tiny bulb and socket into the door to see inside...  works great..  

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professorchris1
I love my Chevy Chevette!
Posts: 4
Joined: 02/11
Posted: 02/15/11 04:33 PM

The window is up.  Can I take the door panel off with the door closed?  If not, do I need to get a locksmith?  

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waynep7122
I mow my lawn and find Chevys
Posts: 1114
Joined: 08/09
Posted: 02/15/11 10:29 PM

open the other door.. insert the ignition key.. roll the windows down...

if you cannot get in the other door...   use Go jacks..or a floor *** what ever it takes to get to the other door...

work through the gap...  

i don't think you can get the door panel off with the door closed...

work the opening levers...   feel the action...   can you feel it move the spring loaded levers on the latch....    do the inside and the outside levers....   see if you can get the inside door lock to rock back and forth while you attempt to open the  door...

if you door opening levers can be moved an amount before they start to actuate the levers on the latch...  you might have found your problem...

call a locksmith...  call a corvette specialist...  have your car towed to your corvette specialist who normally does repairs....

i try to give as good advice as i can.. i have been fixing cars for over 30 years.. so everything looks simple to me..

you are probably really going to want to install a brand new door latch assembly.. to prevent this from happening again..


and this is not that bad...   there is one imported car.. that the doors fail to open on one model.. you have to pull the seats... remove the door panels... get inside the doors with a power drill...  back drill the screws to free the latch to get the doors open..  

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professorchris1
I love my Chevy Chevette!
Posts: 4
Joined: 02/11
Posted: 02/26/11 09:01 AM

Got it open! - thanks for your help.  Another question: I took out the non-original 454 and will be putting in a crate 454/440.  I'm detailing the engine compartment now, and I want to pull the radiator support to not only get it out of the way for the engine install but to also clean/paint it.  After removal, should I support the front end?  I heard that the core support lends substantial support to the front of the body.  

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waynep7122
I mow my lawn and find Chevys
Posts: 1114
Joined: 08/09
Posted: 02/27/11 12:11 AM

that core support removal question is beyond my knowledge..

i have never had the front glass off  a C3...  so i cannot give you a proper answer/

sounds dangerous..  but again.. i don't know for sure...  

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