Security system - 1987 - engine swapped and first start
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Joined: Jul 2023
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Security system - 1987 - engine swapped and first start
Hi guys, I put an 1985 fully remachined engine into my 1987 corvette, when I first try to crank it or try to turn it, nothing happens I think it has something to do with the security system on the car. When I plug-in the battery the security light blinks then when I hit my key that has a “prestige” key fob, the light goes away, I open the door. The battery and low coolant light are on, I assume that’s also important but my battery voltage is good right now. When I try to crank the car nothing happens and the brake light comes on right above the security light in red.
guide me, I’m lost!
guide me, I’m lost!
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So where your saying to put that wire is where I put that green ground wire actually, and then the car wouldn't crank so we came to the conclusion that it must be something to do with the "starter interrupt relay" I think I may have fried it... Long story... but if what you'r saying is true then maybe thats why the car isn't starting, but then where does that green wire go, because that is the ground wire?
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The green wire is very likely the temperature sender in the head for the gauge in the instrument cluster. It is not a "ground". It goes to the temp sender for the gauge. (I can't be positive from the picture, but it goes into the loom, it is in the correct location for the sender in a 1987, and it is the correct wire gauge. I'm pretty sure it is for the gauge sender.)
The outboard terminal on the solenoid will be left vacant. Nothing connected to it.
The outboard terminal on the solenoid will be left vacant. Nothing connected to it.
Melting Slicks
Joined: Feb 2003
Posts: 2,677
Likes: 812
From: Saskatoon Sask.
Hi guys, I put an 1985 fully remachined engine into my 1987 corvette, when I first try to crank it or try to turn it, nothing happens I think it has something to do with the security system on the car. When I plug-in the battery the security light blinks then when I hit my key that has a “prestige” key fob, the light goes away, I open the door. The battery and low coolant light are on, I assume that’s also important but my battery voltage is good right now. When I try to crank the car nothing happens and the brake light comes on right above the security light in red.
guide me, I’m lost!
guide me, I’m lost!
Tighten the main power cable and give it a try. From your picture, it is clearly loose.
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Melting Slicks
Joined: Feb 2003
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From: Saskatoon Sask.
Pro
Joined: Feb 2009
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From: Vancouver Washington
Drew,
There are 6 temperature sensors on the engine.
Driver side cylinder head is for the cooling fan
Passenger side cylinder head is for the dash gauge
Front of the intake manifold are two, one for the engine computer and one for the cold start solenoid
The one above the oil filter is for oil temp as stated earlier
The one on the bottom of the intake plenum is the air temp of the intake which the computer uses also
The best advice you will get on this site is to find a Factory Service Manual for your year of the car. Easily found on ebay. Not the crappy $20 ones either. A true GM FSM. Best of luck.
There are 6 temperature sensors on the engine.
Driver side cylinder head is for the cooling fan
Passenger side cylinder head is for the dash gauge
Front of the intake manifold are two, one for the engine computer and one for the cold start solenoid
The one above the oil filter is for oil temp as stated earlier
The one on the bottom of the intake plenum is the air temp of the intake which the computer uses also
The best advice you will get on this site is to find a Factory Service Manual for your year of the car. Easily found on ebay. Not the crappy $20 ones either. A true GM FSM. Best of luck.
