actualy it started in 87 with the new body style, not 88
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My '87 has a variable resistance oil pressure sender, as did an '88 truck I snagged a wiring harness from. I always thought '89 was the first year for the "dummy gauges" since there were some changes in the wiring that year as well.
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Originally Posted by nstueve
(Post 8857809)
The only problem with that wiring set up is that you'd have to wait for the engine to become hot enough to trip the engine light... And by that time you might already have engine troubles... I thought the point of the OP guage was to give and immediate warning light to the driver of low OP...???
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So the oil temp gauge is really an 'idiot gauge?' Why bother then? The water temp, voltage and fuel gauges really work.
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There's no oil temperature gauge, you have coolant temperature which works like it should, and oil pressure gauge which is an idiot gauge.
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Er, right, oil pressure. Typo.
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Depending on what options you have you may have just an idiot light. My truck like many have an oil pressure gauge that is variable. I know this because when I replaced the sender the guy at Advanced Auto gave me the idiot light sender when I needed the actual variable one, so I had to make the trip back down to return it and go to NAPA, pain in the butt. I do also believe that if you have the variable one like most do, and it drops low the check engine light will come on.
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Originally Posted by 93F250HD
(Post 8861767)
Depending on what options you have you may have just an idiot light. My truck like many have an oil pressure gauge that is variable. I know this because when I replaced the sender the guy at Advanced Auto gave me the idiot light sender when I needed the actual variable one, so I had to make the trip back down to return it and go to NAPA, pain in the butt. I do also believe that if you have the variable one like most do, and it drops low the check engine light will come on.
I don't think that most 93 vintage F series have a factory variable oil pressure sender. I suspect that you truck got converted in the past by a PO. |
If its a gauge that looks like the temperature gauge its variable, if its square and says oil pressure on it and lights up in RED its not. Not conversion, Factory when you go to a NAPA and the guy reads his computer he will ask you if it has a variable pressure gauge, if you put the idiot light oil pressure switch in, the variable guage will stay at 0
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Originally Posted by 93F250HD
(Post 8866132)
If its a gauge that looks like the temperature gauge its variable, if its square and says oil pressure on it and lights up in RED its not. Not conversion, Factory when you go to a NAPA and the guy reads his computer he will ask you if it has a variable pressure gauge, if you put the idiot light oil pressure switch in, the variable guage will stay at 0
Take a look at your factory oil pressure gauge. Does the needle ever move when the engine is running?? If so-it has been modified. I have been told that if a variable sender from an earlier F series is added-and the factory resistor isnt removed-the gauge will become variable-but only for the first half of the gauge range---not the full range of the gauge. Because the resistor limits the full range of the needle. I checked www.napaonline.com and noted that NAPA calls it a switch-not a sender. For our vintage F series. This oil pressure "gauge" for this vintage F series is one of the most sucky things that Ford has done .Why would Ford cheap out on something as important as an oil pressure gauge? My Jeeps have real electronic oil pressure guages from the factory and you can see the needle move as the oil warms up and when the RPM changes. And the Jeep gauge is graduated in PSI. |
Originally Posted by phoneman91
(Post 8866478)
This oil pressure "gauge" for this vintage F series is one of the most sucky things that Ford has done .Why would Ford cheap out on something as important as an oil pressure gauge?
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