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Old 01-16-2008, 04:49 PM   #1
ExMiata
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Dizzy Engine Temp Gauge Doesn't Work

Hi Folks!

I just picked up my 2001 SC2 and the temp gauge doesn't appear to work. No idea why. Suggestions?

It also appears as though the dash lights don't work. I didn't get an owner's manual with it, as I don't know which fuse(s) to check.

"Luck" does not seem to be with me - somebody hit by rear bumper in the dealership parking lot. I bought it "as is"

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Old 01-16-2008, 04:58 PM   #2
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Default Re: Engine Temp Gauge Doesn't Work

Quote:
Originally Posted by ExMiata View Post
Hi Folks!

I just picked up my 2001 SC2 and the temp gauge doesn't appear to work. No idea why. Suggestions?

It also appears as though the dash lights don't work. I didn't get an owner's manual with it, as I don't know which fuse(s) to check.

"Luck" does not seem to be with me - somebody hit by rear bumper in the dealership parking lot. I bought it "as is"
speedometer and tach work?

By temp gauge doesn't work do you mean it just stays all the way over to the left?

...
The streets will flow with the blood of all the non-believers!!!! And all those who won't include their vehicles vital information in their posts!!!!

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Old 01-16-2008, 05:14 PM   #3
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Default Re: Engine Temp Gauge Doesn't Work

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Originally Posted by Phredawgy View Post
By temp gauge doesn't work do you mean it just stays all the way over to the left?
I'm betting it's at the halfway mark all the time.

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Old 01-16-2008, 05:15 PM   #4
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Default Re: Engine Temp Gauge Doesn't Work

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I'm betting it's at the halfway mark all the time.
That's what I was wondering...if that's the case then the issue with the dash lights is seperate(or that was my thinking) if it never comes up and the dash lights don't work that's a whole other ball of wax

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Old 01-16-2008, 05:37 PM   #5
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Default Re: Engine Temp Gauge Doesn't Work

The gauge needle stays all the way to the left....speedometer and tach both work

Now that it is dark out I can see dash lights, but the odometer is dark.

BUT NOW SHE WON'T START!! I have to punch the gas pedal hard...then it kinda coughs to life, but I have to work the pedal a few times to keep it going.

I think I got it from a

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Old 01-16-2008, 06:40 PM   #6
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Default Re: Engine Temp Gauge Doesn't Work

2001....check the ECTS and change it out if you have to. Some of the 2001's were forgotten and had an old style sensor put it. you want a brass one

might just help your starting issue also

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Old 01-16-2008, 06:40 PM   #7
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Default Re: Engine Temp Gauge Doesn't Work

sounds like a thermostat, some 194 bulbs, a bottle of Techron Fuel Additive, and quite possibly a tune up.

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Old 01-16-2008, 07:56 PM   #8
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Default Re: Engine Temp Gauge Doesn't Work

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Originally Posted by Staggman View Post
sounds like a thermostat, some 194 bulbs, a bottle of Techron Fuel Additive, and quite possibly a tune up.
The only confusing part here is the thermostat suggestion

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Old 01-16-2008, 08:02 PM   #9
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Default Re: Engine Temp Gauge Doesn't Work

I let it sit a while and it started - had to drive it to physical therapy(from the Miata accident) - hard starting again. When I got home I noticed a large "wet" spot on the driveway. I couldn't figure out what it was 'cause it soaked in and its too dark out.

Can a bad ECTS leak??

Last edited by ExMiata; 01-16-2008 at 08:13 PM..

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Old 01-16-2008, 08:17 PM   #10
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Default Re: Engine Temp Gauge Doesn't Work

Check your coolant again. It needs to be up to the seam on the reservoir. If it's low, you have a coolant leak, one that could strand you, and if left, could damage the engine. This _might_ also explain the hard starting and the gauge not working.

A bad ECTS can leak, but it would have to be a pretty bad crack. Unlikely to leak enough to leave a puddle on the ground. Still, it's probably bad anyway (IOW, multiple, slightly related problems).

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Old 01-16-2008, 08:58 PM   #11
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Default Re: Engine Temp Gauge Doesn't Work

Thanks! I really appreciate the help!

I checked the coolant level hot the bottle is full, but could there be a blockage?

Not related to the starting, but my power steering fluid was way down. I topped it off. I'll keep an eye on it.



Quote:
Originally Posted by madpogue View Post
Check your coolant again. It needs to be up to the seam on the reservoir. If it's low, you have a coolant leak, one that could strand you, and if left, could damage the engine. This _might_ also explain the hard starting and the gauge not working.

A bad ECTS can leak, but it would have to be a pretty bad crack. Unlikely to leak enough to leave a puddle on the ground. Still, it's probably bad anyway (IOW, multiple, slightly related problems).

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Old 01-16-2008, 09:08 PM   #12
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Default Re: Engine Temp Gauge Doesn't Work

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Originally Posted by ExMiata View Post
Thanks! I really appreciate the help!

I checked the coolant level hot the bottle is full, but could there be a blockage?

Not related to the starting, but my power steering fluid was way down. I topped it off. I'll keep an eye on it.
since you checked the level hot, go back out there and undo the cap to the reservoir and don't tighten it until it has cooled down....the plastic side tanks on these radiators don't always do well when the system is checked hot and then sealed .....

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Old 01-16-2008, 11:12 PM   #13
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Default Re: Engine Temp Gauge Doesn't Work

DONE! phew...thanks!

Quote:
Originally Posted by Phredawgy View Post
since you checked the level hot, go back out there and undo the cap to the reservoir and don't tighten it until it has cooled down....the plastic side tanks on these radiators don't always do well when the system is checked hot and then sealed .....

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Old 01-17-2008, 12:18 AM   #14
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Default Re: Engine Temp Gauge Doesn't Work

well, if you had a bad thermostat, (they are designed to fail in an open position) coolant would be flowing all the time... never allowing it, or the motor, to heat up enough to register on the guage.

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Old 01-17-2008, 09:43 AM   #15
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Default Re: Engine Temp Gauge Doesn't Work

Check the ECTS for the old type, and the connector for corrosion. Replace as necessary. If the circuit is high resistance due to a failure or corrosion, that could cause no indication on the temp gauge and contribute to hard starting and poor idle.

From experience, even with an open t-stat in winter weather, the gauge should come off the peg after a 5-10 minutes and miles, just not get above 1/8 scale during normal driving. And an open t-stat should not effect starting.

Check the puddle. If it is coolant and on the passenger side under the engine, it may be from a leak in water pump, perhaps around the shaft. If the pump is leaking, replace it as soon as you can. It might also be from hoses. If the puddle in on the driver side, it might a hose or a radiator end tank crack, although 2001 sounds a bit early for the radiator end tank crack. And if you arfe in a warm climate, and the puddle appears to be just water, it might even be condensate from the A/C

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Old 01-22-2008, 09:37 PM   #16
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Default Re: Engine Temp Gauge Doesn't Work

Quote:
Originally Posted by ExMiata View Post
Hi Folks!

I just picked up my 2001 SC2 and the temp gauge doesn't appear to work. No idea why. Suggestions?

It also appears as though the dash lights don't work. I didn't get an owner's manual with it, as I don't know which fuse(s) to check.

"Luck" does not seem to be with me - somebody hit by rear bumper in the dealership parking lot. I bought it "as is"
Car is in the shop.......the mechanic called - the fan is hot wired to run as soon as the key is turned and there were soooo many codes he didn't know where to start. I convinced him to change the ECTS and fix the fan wire. He called back to say it's a miracle cure and all is well with the world.....NOT!
I drove it a block came to a stop sign and the brakes felt soft then pulled to the left, engine made some odd noises kinda deep knockclunk and the Service Engine Soon light came on. Back in the shop.

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Old 01-22-2008, 11:48 PM   #17
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Default Re: Engine Temp Gauge Doesn't Work

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Car is in the shop.......the mechanic called - the fan is hot wired to run as soon as the key is turned and there were soooo many codes he didn't know where to start. I convinced him to change the ECTS and fix the fan wire. He called back to say it's a miracle cure and all is well with the world.....NOT!
I drove it a block came to a stop sign and the brakes felt soft then pulled to the left, engine made some odd noises kinda deep knockclunk and the Service Engine Soon light came on. Back in the shop.
You trust this shop?

...
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Old 01-23-2008, 08:25 PM   #18
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Default Re: Engine Temp Gauge Doesn't Work - Update

OK, The code - torque converter clutch can not engage.

Because I have a third party warranty, the folks at my shop told me to take it to a transmission shop so we avoid any trouble with the warranty claim.

The wife of owner of the shop closest to me is expecting her first baby any moment and he is taking a week off when the baby is born. He has me "penciled' me in for Feb. 11th.

Might have to go somewhere else.

Suggestions?

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Old 01-25-2008, 09:26 AM   #19
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Default Re: Engine Temp Gauge Doesn't Work

Quote:
OK, The code - torque converter clutch can not engage.
What was the actual code number, not their interpretation of it?

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Old 01-25-2008, 07:26 PM   #20
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Default Re: Engine Temp Gauge Doesn't Work

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What was the actual code number, not their interpretation of it?
I forget

The mechanic did say, but I was at work and.....

I'll check.

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