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Thread: Thermostat problem?? (2000 Dodge Ram 5.9 V8)

  1. 02-07-2005, 10:34 AM #1
    Tim the Teacher
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    Default Thermostat problem?? (2000 Dodge Ram 5.9 V8)

    What would cause a temp gauge to go soaring onto the high side, illuminate the "check engine" light and then suddenly go back to normal operating temp...all while the vehicle is moving at a constant speed?
    I live where even the coyotes won't go...
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  2. 02-07-2005, 10:37 AM #2
    srivendel
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    Did something get sucked into your radiator (like a plastic bag) for a couple of minutes, then blow out, returning temps to normal?

    S.
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  3. 02-07-2005, 10:55 AM #3
    Tim the Teacher
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    No bags or trash and this has happened several times over the last week.
    I live where even the coyotes won't go...
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  4. 02-07-2005, 11:00 AM #4
    POS Racing
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    Has the level dropped in the coolant reservoir?
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  5. 02-07-2005, 11:05 AM #5
    Tim the Teacher
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    Dosen't look like it. I only did a perfunctionary check in the dark in the rain in the cold....you know...one of those "Okay I see green" checks and the put the cap back on.

    ETA....I forgot to say this is happenin on my other vehicle 2000 Dodge Ram truck.....still need the help though
    I live where even the coyotes won't go...
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  6. 02-07-2005, 11:07 AM #6
    POS Racing
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    Is it still under warranty? Sounds like it may be time for a visit to your local Mazda deaeler....
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  7. 02-07-2005, 11:18 AM #7
    Tim the Teacher
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    Is de truck..not de mazda
    I live where even the coyotes won't go...
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  8. 02-07-2005, 11:23 AM #8
    POS Racing
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    Quote Originally Posted by Tim the Teacher
    Is de truck..not de mazda
    So you post the question in Miata Tech?

    So change the thermostat and see what happens!
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  9. 02-07-2005, 11:25 AM #9
    Tim the Teacher
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    Its the Miata's big brother....same family

    Hey whadaya know....this thread found the right forum. Sorry about that POS...need more coffee and sleep
    I live where even the coyotes won't go...
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  10. 02-07-2005, 11:28 AM #10
    POS Racing
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    So now that we have determined it's a 2000 truck, what is it? A Chevy? A Ford? V8? V6?
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  11. 02-07-2005, 11:29 AM #11
    Tim the Teacher
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    Dodge Ram 5.9 v8 2000 model
    I live where even the coyotes won't go...
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  12. 02-07-2005, 11:41 AM #12
    POS Racing
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    Quote Originally Posted by Tim the Teacher
    Hey whadaya know....this thread found the right forum. Sorry about that POS...need more coffee and sleep
    It's Magic!

    So how many miles on the Dodge?
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  13. 02-07-2005, 11:43 AM #13
    altiain
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    Replace the t-stat and the radiator cap for starters, then see what happens. If that solves you're problem, great. If it doesn't, you're out about 10 bucks and back to square one. What have you got to lose?
    Iain

    "We don't stop playing because we grow old, we grow old because we stop playing." - George Bernard Shaw
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  14. 02-07-2005, 11:45 AM #14
    POS Racing
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    Quote Originally Posted by altiain
    What have you got to lose?
    Looks like about $10.00!
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  15. 02-07-2005, 12:08 PM #15
    Tim the Teacher
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    Thank you for the tips.....BTW the truck has 47000 miles..just a baby
    I live where even the coyotes won't go...
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  16. 02-07-2005, 03:24 PM #16
    MadMerv
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    Default Re: Thermostat problem?? (2000 Dodge Ram 5.9 V8)

    Quote Originally Posted by Tim the Teacher
    What would cause a temp gauge to go soaring onto the high side, illuminate the "check engine" light and then suddenly go back to normal operating temp...all while the vehicle is moving at a constant speed?
    No water........
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