OldPoop55

This is my first post to the Forum. I picked up a 1984 Corvette as a salvage vehicle and it needs a good bit of work as you can imagine. I was told the engine did run, three years ago. Question is, I had a key cut for it that has no resistor. I thought the 1984 did not have a security system but, I now have a security light flashing n the dash since I put a battery it in it. Is this the case? 1984 had VATS? Thanks..

WVZR-1

NO VATS but it does hare a THEFT DETERRENT system You may be able to rotate the key in the door cylinder to turn off the SECURITY. You'll need to do some reads of service information to understand how certain options/systems work. Were you fortunate enough to get an owners manual with it?

B17Crew

VATs was introduced in the 1986 model year. Keep us posted on your progress!

B17Crew

OldPoop55

No service manual. I'll search the forum to see if I can find one. I am excited about getting this corvette back on the road. I installed a new battery and it will crank. It has been sitting for three years. Not sure If I should give it a shot of ether to see if it will fire up. Debating on whether to remove the gas tank to clean it, purge fuel lines, rails, etc.

Or, do I add a couple gallons of fuel and find out what happens? Suggestions?

Once I cure the Security issue, of course.

Thanks for the responses..

odxr

Online sevice manual= www.alldata.com The real gm fsm on line and you can print pages from it.$25 a year for the 1st vehicle. I have found the wiring diagrams to be accurate.

Cliff Harris

Don't remove the fuel tank. It's not necessary and a lot of work. Remove the fuel level sender. This will leave a very large hole that will allow you to get into the tank and clean it. Don't be surprised if the fuel level sender is a lump of rust...

divotdug

My understanding from my owner's manual is that the starter is disabled when the security system is breached. To be sure, lock the doors from the inside. When both doors are closed, the system is activated. Unlocking either door with the key should deactivate the system.

If the engine is cranking, I suspect the issue is not the security system.

Now it is just some old fashioned trouble shooting. The problem is either in the fuel system or the electrical system. First step is to narrow down which system is failing.

OldPoop55

Thanks for the info on the manual. I'll go sign up to the service.

OldPoop55

Thanks for the advice here. The carpet is pretty bad as I think it got wet once or twice. Once I pull everything out, I'll do what you have suggested.

OldPoop55

I probably have an electrical or fuel problem as you have stated. I can sit in the car with the doors closed, turn the key and the engine cranks. Thanks for the heads up.

corvettenorway

give it some fuel and try to start . then you can clean the tank,new fuel filter ++++

corvettenorway

http://www.ebay.com/itm/1984-Corvett...pXAufU&vxp=mtr

Hot Rod Roy

'84's have a really neat feature! It's easy to see if you're getting fuel pressure, and the fuel injectors are working. Remove the air cleaner and watch the fuel injectors while you're cranking the engine. You should see a nice, even spray pattern from both of the injectors. If you have a good spray pattern, you don't need the ether starting fluid! If the injectors are working, check for spark!