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| MikeG | Need HELP !!! | ||
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Guru
 
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93 auto. Started the car in the garage, put it in reverse and backed out of the garage. The second I put the selector in drive it dies. Start it again and put it in reverse and back up, drop it in drive and it dies. I can drive all over the farm in reverse but the second I go to drive it dies. Any thoughts ? this has me puzzeled.
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Posted on: 2011/12/31 20:07
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| bogus | Re: Need HELP !!! | ||
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Grand Imperial Pooh-Bah
 
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that is weird... I am wondering if something has broken internally...
I am checking the FSM for any diags to match your symptoms. This is really odd. Does it load up and stall or does it sputter and quit? Have you tried jacking up the rear and and putting it into drive? Have you tried restarting whilst in drive? What about dropping the shifter into 3 or 2? Not sure if these are good ideas, but sound like some valid tests... Where in the world is PeteK today? |
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Posted on: 2011/12/31 20:29
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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| MikeG | Re: Need HELP !!! | ||
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Andy its just like you shut the key off. I checked and it is not throwing any codes. I've checked vacuum lines. I checked motor mounts to see if maybe one was broken. Just jacked it up in the garage , with rear wheels off the ground it still dies, but does just fine in reverse. I'll try starting it in drive while its jacked up, Good Idea.
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Posted on: 2011/12/31 20:33
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| bogus | Re: Need HELP !!! | ||
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Grand Imperial Pooh-Bah
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I can't find any specific diag in the FSM that relates to this problem... Any codes?
My only guess would be something with the torque converter, but if that was the case, it would be perma-locked, and why isn't it dying in reverse? |
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Posted on: 2011/12/31 20:41
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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| bogus | Re: Need HELP !!! | ||
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Grand Imperial Pooh-Bah
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Quote:
If the rear wheels start moving when trying to start, you may have just found it... a locked up torque converter... odd that it isn't locking in reverse... unless it's a bad relay. |
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Posted on: 2011/12/31 20:43
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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| MikeG | Re: Need HELP !!! | ||
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Tried to start it in drive, no go, it spins but won't start. I am at a complete loss on this . Have no idea where to even start looking. EDIT: it spins in neutral but wont start, does nothing in drive. Neutral safety switch ?????
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Posted on: 2011/12/31 20:49
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| pianoguy | Re: Need HELP !!! | ||
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It looks like there are a couple of fuses related to the automatic transmission, but I'm not sure if they would have anything to do with your problem. Probably worth a look, though. Sounds like it might be electrical in nature.
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Posted on: 2011/12/31 22:23
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1996 LT4 �Before you criticize someone, you should walk a mile in their shoes. That way when you criticize them, you are a mile away from them and you have their shoes.�- Jack Handey |
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| BillH | Re: Need HELP !!! | ||
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The Stig Moderator
 
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Quote:
From your edit, Mike, the starter only spins in park and neurtal? If that's correct that the safety switch is doing what it's supposed to. That switch can't be part of the problem since the switch is wired to the starter enable relay and the then to the ignition switch BUT only to the "Start" contact in the ign. switch, not the 'Run" position. All of it is a ground circuit so I can't see it doing anything to the ignition switch. The starter spins in neutral but the engine won't fire? That's very strange since it starts in park correct? If you can start it in park, can you shift to neutral and the engine keeps running? Since it runs in reverse, I'd try (on the jackstands) shifting to neutral and also drive. Is your ignition switch tight in the column or can you move it in and out a 1/8th inch or more? |
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Posted on: 2011/12/31 23:28
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| bogus | Re: Need HELP !!! | ||
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Grand Imperial Pooh-Bah
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Mike - what did the testing reveal?
Bill - I have restarted cars that have stalled in drive whilst still in drive... odd. |
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Posted on: 2012/1/1 3:11
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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| PeteK | Re: Need HELP !!! | ||
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Moderator
 
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Possible torque converter circuit failure. Disconnect the connector on the drivers side of the trans, toward the rear of the trans. If it solves the stall issue, you can start troubleshooting the lock up circuit.
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Posted on: 2012/1/1 6:30
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| Woodstock | Re: Need HELP !!! | ||
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Happy New Year guys.
Didn't the LT1s have an issue with the brake fluid being too low? |
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Posted on: 2012/1/1 13:52
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| BillH | Re: Need HELP !!! | ||
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Yea, IIRC doing it once quite a while ago but it can only happen if the switch is misadjusted. The switch on LT1's is under the console. |
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Posted on: 2012/1/1 14:11
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Every man dies but not every man lives. |
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| BillH | Re: Need HELP !!! | ||
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The Stig Moderator
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Shouldn't affect start/run, Axel. Low fluid will cause the ECM to disable the ABS Pump but that's about it, at least on the early LT1's. |
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Posted on: 2012/1/1 14:30
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Every man dies but not every man lives. |
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| BillH | Re: Need HELP !!! | ||
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The Stig Moderator
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Quote:
Thanks Pete. |
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Posted on: 2012/1/1 14:31
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Every man dies but not every man lives. |
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| RickAnthony | Re: Need HELP !!! | ||
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ASE Master Certified
 
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Quote:
Wouldn't a stuck lockup cause it to stall in reverse as well? or does something in the valve body not allow fluid flow through the solenoid while the manual selector is in reverse? That was my first though the lock up as well, just curious about the reverse thing, never had this issue myself, other then having a few GM's that would stall after the converter had been turned on for the first time and coming to a stop. -=Rick |
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Posted on: 2012/1/1 16:07
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My Automotive Blog autoserviceupdated.blogspot.com CORVETTE SERVICE & REPAIR RickAnthonyMotorsports.NET |
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| bogus | Re: Need HELP !!! | ||
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Grand Imperial Pooh-Bah
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I am with Rick on the TC issue... I think I even voiced it above. If it was bothering drive, why not reverse.
I think we need to hear back from Mike on his latest round of diags. |
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Posted on: 2012/1/1 17:46
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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| MikeG | Re: Need HELP !!! | ||
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Guru
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Dropped the pan on the tranny last nite. Fluid looks like baked coca-cola. Smells like burnt diesel fuel. Going to go thru the tranny and see if I can figure out what happened. I'll keep you updated.
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Posted on: 2012/1/1 19:34
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| bogus | Re: Need HELP !!! | ||
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ooh... that isn't good. If nothing else, it's old fluid.
Very old fluid. |
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Posted on: 2012/1/2 0:10
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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| PeteK | Re: Need HELP !!! | ||
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Moderator
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[quote]
bogus wrote: I am with Rick on the TC issue... I think I even voiced it above. If it was bothering drive, why not reverse.quote] If it were any year except 1993, I would agree. 1993 was a unique year. Most GM cars and trucks went to the 4L60E trans in 1993, but the vette did not. Because this is a transitional year, many of the internal components were made to retrofit between the electronic, and non-electronic transmissions. Valve body, separator plate, and internal wiring harness (and pressure switches) are unique to a 1993 corvette 4L60. I do not have the good book in front of me, so I cannot make a good guess. My recommendation to disconnect the wiring harness is a quick easy way to confirm or deny. Makes sense to me to start here.[/ |
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Posted on: 2012/1/2 5:07
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"It was really on a pass until it came apart." "Yeah. They always are." |
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| bogus | Re: Need HELP !!! | ||
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Grand Imperial Pooh-Bah
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oh... so my referring back to my 92 FSM is pretty much useless.
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Posted on: 2012/1/2 6:16
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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| PeteK | Re: Need HELP !!! | ||
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Unfortunately, yes.
There are additional pressure switches in the 93, and my hope is that one of them has failed. That would be a cheap and easy fix. |
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Posted on: 2012/1/2 13:30
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"It was really on a pass until it came apart." "Yeah. They always are." |
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| Steve40th | Re: Need HELP !!! | ||
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Elite Guru
 
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I say IAC is bad and isnt compensating when putting it in gear. I am sticking with this. Happy New Year
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Posted on: 2012/1/2 13:44
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Ko'u ohana aia ku'a ikaika |
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| bogus | Re: Need HELP !!! | ||
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Grand Imperial Pooh-Bah
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if that's the case, why isn't it dying in reverse? Load is load, yo.
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Posted on: 2012/1/2 17:32
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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| Steve40th | Re: Need HELP !!! | ||
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Elite Guru
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Because the engine going backwards then? LOL No idea, but its simple to take it out and clean it but dont turn it. There are simple tests to do to test as you will not get a code. |
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Posted on: 2012/1/2 17:51
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Ko'u ohana aia ku'a ikaika |
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| bogus | Re: Need HELP !!! | ||
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Grand Imperial Pooh-Bah
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uh, ok Steve... Is this the first sign of Island Fever?
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Posted on: 2012/1/3 6:19
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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| Steve40th | Re: Need HELP !!! | ||
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Elite Guru
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Yes.. |
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Posted on: 2012/1/3 12:34
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Ko'u ohana aia ku'a ikaika |
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| jonszr1 | Re: Need HELP !!! | ||
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Senior Guru
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i remember a buddy of mine in high school telling this kid that he needed to watch out when backing up as the engine spins backwards and if he went to fast he would blow the motor up. poor kid parked his car so he would never have to back up .lol
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Posted on: 2012/1/3 16:28
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i have a blast playing with my 4 babies 2 zr1s and 2 mustangs 68 coupe with a jon bennit 408 art car fully rollered c4 with a gearvendors over drive .88 mustang built by my kids with a ported lt5 and a bill boudreau blue printed zf 6 spd. with these 4 ... |
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| MikeG | Re: Need HELP !!! | ||
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UPDATE : Torque convertor had about a five inch crack around the outside edge. So far that is all we can find that is damaged.
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Posted on: 2012/1/5 22:39
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| bogus | Re: Need HELP !!! | ||
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Grand Imperial Pooh-Bah
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a 5" crack? That's enough damage...
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Posted on: 2012/1/6 2:14
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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