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#1
12-30-2010, 08:21 PM
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Temp gauge problem for 4.0
On a cold day, after about 10-15 miles of driving, the temp gauge on my truck will barely leave the cold mark, but the heater works fine. In the morning when i start it the temp gauge is way below the cold mark and slowly creeps up just past the cold mark. Just trying to figure out whats wrong before i replace parts. This is on a 98 4.0 with a non tach gauge cluster.
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98 ford ranger xlt ex cab 4.0 v6 auto trans 
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#2
12-31-2010, 02:55 PM
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Re: Temp gauge problem for 4.0
If i replace the rad. cap would that help.
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98 ford ranger xlt ex cab 4.0 v6 auto trans
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#3
12-31-2010, 02:57 PM
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Re: Temp gauge problem for 4.0
Its probably just the temp sensor itself. I was just saying in another thread about how they are not accurate. Try replacing the sensor and see what it does or doesn't do.
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1999 | Ext. Cab | 4.0 | 4x4 | 4.10's Quote:
Replace Door pin/bushing Repair broken dome light tabs VIDEO OHC Install
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#4
12-31-2010, 04:25 PM
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Re: Temp gauge problem for 4.0
Which one is the sensor the one or two wire.
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98 ford ranger xlt ex cab 4.0 v6 auto trans
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#5
12-31-2010, 04:50 PM
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Re: Temp gauge problem for 4.0
What would be the reason for the gauge to be way below the cold mark when first started.
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98 ford ranger xlt ex cab 4.0 v6 auto trans
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#6
12-31-2010, 06:25 PM
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Re: Temp gauge problem for 4.0
it could be. Im not sure which one it is. I think there are two, one for the computer, one for the gauge. The gauge is just resistance kinda deal, with getting hot and cold all the time it is possible it is reading inaccuratly
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1999 | Ext. Cab | 4.0 | 4x4 | 4.10's Quote:
Replace Door pin/bushing Repair broken dome light tabs VIDEO OHC Install
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#8
01-01-2011, 03:03 PM
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Re: Temp gauge problem for 4.0
just replace them both..
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MY BUILD THREAD  1999 MAZDA 2500SE, 2.5L 4-clanger, 5 speed, Green n slow. Rangers as daily drivers since 1988. ASE Certified Mechanic, Builder of Show Destroying Protouring and Classic cars..
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#9
01-04-2011, 01:01 AM
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Re: Temp gauge problem for 4.0
Replace the electronic body module and your problems are over. Dont leave it as it wont register overheating until its too late..
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