Check Guages ---> High Temp - TCCoA Forums
 
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post #1 of 5 (permalink) Old 10-09-2006, 07:26 AM Thread Starter
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Check Guages ---> High Temp

OK, so whether I'm sitting idling in my 96 LX, or I'm doin 65mph. Sometimes the needle creeps and the dummy light comes on. It lasts for a second to a minute then goes back down. I checked the radiator fluid and it's full. Also, the fan kicks on when I popped the hood while it was running. Anyone have any idea as to the cause of this?

Oh yeah, the oil is fine along with all of the fluids. When I got a tune up they said the EGR was dirty and seemed to be not running 100%. Could this be it?

96' 4.6l LX Sport - Modding put on hold for awhile
91' Chevy 1500 - Can't wait for the 383 Stroker
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post #2 of 5 (permalink) Old 10-09-2006, 09:17 AM
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sounds like the t-stat is bad. . . .just my thoughts.

Currently In the Short Bus Garage:
2 - '94 T-bird LX's 4.6L (one with 300,000+ miles and one with 200,000+ miles)
1 - '97 Mark VIII LSC - INTECH V8 (120,000+ miles)
1 - '97 F150 XLT 4x4 Flareside, 4.6L (130,000+ miles) - Currently being dismantled and rebuilt with upgrades!
1 - '00 Mustang GT (likes to accelerate with the brake on!), 4.6L (60,000+ miles - only comes out when I need to get somewhere fast.)

oh yeah, and they all have 4R70W's
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post #3 of 5 (permalink) Old 10-09-2006, 01:10 PM
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nothing to do with egr....


possible temp probe...
possible water pump
possible thermostat sticking

i agree with wether
i would start with the thermostat l
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post #4 of 5 (permalink) Old 10-09-2006, 04:51 PM
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Sending unit?

Sound like the gauge sending unit has had it. It's just a transducer... converts temperature to voltage. I had one that every day getting on the freeway and nailing it would put it almost against the peg, but would drop back down in about a minute. Replaced the sending unit in the intake manifold (5.oh), and all was well. I'm actually on #3 in the 13 years I've owned the car.

Good idea to have it checked with a pyrometer. Most radiator shops will check it for free or nominal cost. You can get an accurate reading just about anywhere in an operating cooling system. Here's what one looks like:

http://store.summitracing.com/partde...5&autoview=sku

Wife uses mine for cake baking! BTW, get a Ford or Standard Products Co. replacement for best results; usally under $10.00.

Best of Luck!

That is all...

Experience is simply knowing what not to do... and knowing what won't work.
The Car... 324,201 and still goin' strong; Me... I'm NOT a complete idiot - still missing a few parts.
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post #5 of 5 (permalink) Old 10-10-2006, 03:36 PM Thread Starter
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I got it all resolved. Well first I sucked out the coolant and it was dirty with chunkies, methinks it caused a clog. Hasn't done it since, but if it does I'm goin with the list you gave.

96' 4.6l LX Sport - Modding put on hold for awhile
91' Chevy 1500 - Can't wait for the 383 Stroker
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