buying tomrrow,
Thread Starter
Heel & Toe
Joined: Jul 2005
Posts: 17
Likes: 0
buying tomrrow,
well tomorrow i am picking up a 92 black on black leather 6spd. It has 64k on it. The only problem I have found is the condensor fan is not turning on. Do the fan motors go bad, or switch? I am just wondering what the most likely cause is. The a/c doesn't blow cold at idle obviously, but gets real cold when you start getting air to the condensor. Let me know what you all think. Is there anything else I should look for that might crap out on the 92's? Thanks -Casey
PS. What's everyones standpoint about a supercharger on these?
PS. What's everyones standpoint about a supercharger on these?
Drifting
Joined: Aug 2004
Posts: 1,830
Likes: 1
From: atlanta Georgia
ac...?
SC
gonna take
fully built engine
4 bolt main
forged internals
Low compression pistons
new heads
etc etc etc
maybe other new stuff depending on how much hp ure goning be wanting.
and around 10 k give or take a couple k
SC
gonna take
fully built engine
4 bolt main
forged internals
Low compression pistons
new heads
etc etc etc
maybe other new stuff depending on how much hp ure goning be wanting.
and around 10 k give or take a couple k
Le Mans Master
Joined: Apr 2005
Posts: 8,077
Likes: 4
From: Scarborough ONTARIO
92 Blk on blk thats a good year to buy as they changed to LT1 intake.
Through some Lt4 hotcam and head job u r good to go, but before jump on to HP modding thing please hang on few months here on CF and know whats going on.
Cant tell exactly about fan could be few other reason others may chime in.
Through some Lt4 hotcam and head job u r good to go, but before jump on to HP modding thing please hang on few months here on CF and know whats going on.
Cant tell exactly about fan could be few other reason others may chime in.
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
1992... a good year... but I am rather biased. 
The fan... my guess is a relay problem, but it requires a couple of simple tests, first. Make sure voltage is getting to the fan, if not, relays. If so, fan motor.
They usually get weak versus totally stopping. Mine went weak and I replaced it. Perhaps, that one has been week, and the owner never noticed until it stopped.
Supercharger? Well... the LT1 in Vettes is a 4 bolt main. You can put one on a stock motor, if you don't over do the boost. Just don't expect it to last forever.
I prefer the Hotcam/Roller rockers as a first step.
At 65k miles, it's nearing it's first optispark. You are also getting into wheel bearing replacement time. Brakes will need to be serviced, too.
Basically, the current owner is unloading it so they don't have to deal with "Maintenance Cycle 2005". A rather pricy proposition.
Read the C4 Tech FAQ at the top of the page (it's a sticky).
The fan... my guess is a relay problem, but it requires a couple of simple tests, first. Make sure voltage is getting to the fan, if not, relays. If so, fan motor.
They usually get weak versus totally stopping. Mine went weak and I replaced it. Perhaps, that one has been week, and the owner never noticed until it stopped.
Supercharger? Well... the LT1 in Vettes is a 4 bolt main. You can put one on a stock motor, if you don't over do the boost. Just don't expect it to last forever.
I prefer the Hotcam/Roller rockers as a first step.
At 65k miles, it's nearing it's first optispark. You are also getting into wheel bearing replacement time. Brakes will need to be serviced, too.
Basically, the current owner is unloading it so they don't have to deal with "Maintenance Cycle 2005". A rather pricy proposition.
Read the C4 Tech FAQ at the top of the page (it's a sticky).
Thread Starter
Heel & Toe
Joined: Jul 2005
Posts: 17
Likes: 0
Thanks guys
Well I bought it today. Right off the bat I have noticed a few things. The passenger headlight sometimes doesn't want to flip open, and the passenger window sometimes doesnt want to roll up and down. I am still getting used to the 1st to 4th mode (which i hate). I noticed that when you accelerate hard sometimes it will buckle, like a slight hesitation. The temp gauge is reading at 230 degrees on a very hot day today..other wise in teh evening its around 210-220. Is this normal? Oh yea, I checked out the a/c fan, its def bad. it blew a fused link. I replaced it and the circuit is getting power, but the fan isnt working. But anyway, thats pretty much ALL ive noticed about the car that's wrong with it. It seems like a maintenance thing...what kind of maintenance should i be looking to do around 65k? fuel filter...plugs..? thanks for all the help- Casey
Melting Slicks
Joined: May 2004
Posts: 2,286
Likes: 2
From: Stamping Ground KY
Check out the stuff Bogus listed.
You can disable the 1-4 lockout (Computer Aided Gear Selection: CAGS) by removing a plug on the transmission, but that would throw a code; several places sell a replacement plug that disables CAGS and doesn't throw the code. I think it can also be disabled in the chip. Or you can just rev higher in 1st (the 1-4 window is actually pretty narrow).
The passenger window sounds like a bad contactor.
The hesitation might be the fuel filter.
Does the 92 have an oil cooler, or is it synthetic only?
You can disable the 1-4 lockout (Computer Aided Gear Selection: CAGS) by removing a plug on the transmission, but that would throw a code; several places sell a replacement plug that disables CAGS and doesn't throw the code. I think it can also be disabled in the chip. Or you can just rev higher in 1st (the 1-4 window is actually pretty narrow).
The passenger window sounds like a bad contactor.
The hesitation might be the fuel filter.
Does the 92 have an oil cooler, or is it synthetic only?
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
1992 won't throw a code for CAGS... so pull that damned plug!!!!
Read the C4 Tech FAQ !!!!! I cannot enforce that any firmer!
Now...
The window is a bad motor. That is a common problem.
at 65k miles, it needs a full tuneup.
NGK plugs
Taylor or MSD wires
fuel filter
Don't be surprised if the fuel pump is dying... hunks of junk...
The headlite is a DIY repair... hang tight on that one, and I will have some documents via www.c4guru.com that will help.
get under the nose and clean out the radiator intake. I will bet $$ that it's full of dirt.
A new fan motor is cheap and easy.
Call Chris May at Superior Chevy, 1.800.728.8267. Tell him you are a forum member and that I sent ya.
Read the C4 Tech FAQ !!!!! I cannot enforce that any firmer!
Now...
The window is a bad motor. That is a common problem.
at 65k miles, it needs a full tuneup.
NGK plugs
Taylor or MSD wires
fuel filter
Don't be surprised if the fuel pump is dying... hunks of junk...
The headlite is a DIY repair... hang tight on that one, and I will have some documents via www.c4guru.com that will help.
get under the nose and clean out the radiator intake. I will bet $$ that it's full of dirt.
A new fan motor is cheap and easy.
Call Chris May at Superior Chevy, 1.800.728.8267. Tell him you are a forum member and that I sent ya.
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Thread Starter
Heel & Toe
Joined: Jul 2005
Posts: 17
Likes: 0
blowing cold
well today i replaced the fan motor, it was only $21 from napa...now its staying under 215 degrees and the a/c is blowing cold. it still has that slight hesitation. i am going to replace the fuel filter. how hard is it to replace the plugs and wires? any special procedures? Where is this plug at to disable the 1-4 shift..its very annoying! Thanks for the help so far! -Casey
Last edited by caservette; Aug 18, 2005 at 07:53 PM.
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
fuel filter is best done by removing the fuel line from the bottom and yanking it up to the engine compartment.
the plugs can be a bitch. expect to waist half a day on them.
the harness is the big one going to the tranmission, under the car, near the shifter.
the plugs can be a bitch. expect to waist half a day on them.
the harness is the big one going to the tranmission, under the car, near the shifter.
Thread Starter
Heel & Toe
Joined: Jul 2005
Posts: 17
Likes: 0
future mods
well i wanted to put a supercharger on it but its pretty damn expensive. i am wanting some sort of forced induction...running nitrous on a stock motor with 64k on it, what is considered a safe shot to run? I favor the nitrous express wet kits...what sort of stuff are there to look out for..timing, etc... i am used to honda's, etc..so this is all new to me here working on vettes. -Casey
Le Mans Master
Joined: Dec 2004
Posts: 5,789
Likes: 8
From: Myrtle Beach SC
St. Jude Donor '05-'06
Check the "Digitalcorvettes" forum.Grumpy has a good right up there on nitrous.After you get done going over everything and doing a tune up then getting to know the car then it is time to start thinking mods.Do not rush unless you are already familiar with the LT1.Get the Helm Factory Service Manual it will save you lotsa $$$$$$$.Keep reading here and check the induction forum here.