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The ECT sensor located on the block between plugs 6 & 8 (roughly) operates the analog gauge only. The ECT sensor located on the water pump is monitored by the PCM for everything else.

First thing to do is get some spray electrical contact cleaner and remove all the WD40.

You might have better luck by posting a question, along with more information. And changing mechanics...

How old is the battery? What method did you use to check it and determine it is ok? Is it at full charge? If not, charge it and check the DC voltage at the battery while running again. Change the voltmeter to read AC volts and check again. If the DC voltage is not around 13-14 volts or the AC...

This may help. Especially since you have a vacuum pump. Vacuum Troubleshooting . I suspect the relays, since when they wear out they leak vacuum.

Be glad it's stuck in the up position! Get a regulator motor and a couple of six packs and make a day of it. Won't be fun, but you'll have a working window. Just take your time, mark the position of all the brackets and bolts and what not before you loosen them so you can put them back in the...

Google Bowling Green Plant Processing. :thumb

Like Hib says. But if you really want an IAC it is mounted passenger side below the throttle body and below the TPS. 25527077. 1988 CHEVROLET CORVETTE 5.7L 350 cubic inch V8 Fuel/Air : Idle Air Control (IAC) Valve Auto Parts

Might be worth a shot. 7044225 | eBay

Yes. The ECT on the water pump feeds the PCM. The ECT on the block operates the analog sensor only. Pull the connector off of the sensor on the passenger side of the block, ground the wire and turn the key to on. If the sensor moves toward hot then the sensor or its grounding is bad. Keep in...

I meant do the digital temps read zero too?

Digital and analog gages or what?

I didn't know you get your walker down the hall in four hours. :w

Damn Junk, even a first timer can do it in an hour. :cool!: (Upside down, maybe. But I usually stay away from that both sides thing though...)

Did you know you can replace the bushings in one motor in about the time it takes you to go to the local auto parts store and replace the motor (or less)? It's really that easy. $200 vs $10 and an hour of work is a no-brainer to me.

The bushings are cheap and the job is easy. Like has been mentioned, the old ones have turned to dust and need replaced.

$10 for the P/S pump rebuild kit (seals) at NAPA and a can of paint, and unless the internals are shot, you're good to go.

Either the relay is bad or you have a bad connection/wire. :thumb You can pull the relay and test it with a 12v battery, some wire and a multimeter.

Not sure about the 81. My 73's is just in front of the hood centerline underneath.

If you think the relay might be bad (which it probably is), simply switch it with the other side or route the hoses to the other side. Simple check. You don't need the tank for normal operation unless you plan on opening the headlights with the engine off (good luck with that anyway).