Sensors
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Sensors
Hey all just got some questions to ask, kinda new to my ranger and want to get some things done to it. First can anyone shine some like on how to install and mechanical oil pressure gauge and a water temp gauge, the volt gauge is easy enough but im having some problems with the other 2, like i said im new to my ranger but i do so love it. Any help would be great thanks all.
Oh i have a 4cyl 5 speed if your wondering, not 4x4.
Oh i have a 4cyl 5 speed if your wondering, not 4x4.
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From: SW Va
Well you could install a "T" fitting at the factory oil pressure sending unit & water temp sending unit block location, for the new instruments sending units & still maintain the factory gauges, by attaching them to the other end of the "T".
The new gauges could be installed into a pod that replaces the tim piece on the drvers side "B" pillar, looks good & is out of the way.
Use teflon ribbon dope, or permatex liquid pipe thread sealant on the fittings, so they don't weep. If you use the ribbon dope, about 4 wraps will usually do. DON'T use to much, as it might just ball up & not seal well.
The new gauges could be installed into a pod that replaces the tim piece on the drvers side "B" pillar, looks good & is out of the way.
Use teflon ribbon dope, or permatex liquid pipe thread sealant on the fittings, so they don't weep. If you use the ribbon dope, about 4 wraps will usually do. DON'T use to much, as it might just ball up & not seal well.
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The water temp sender will not fit into a tee unless it is an oddball tee because it is a bulb type sender. The gauge comes with adapters to replace the original sender. You will need to run the tube and bulb thru the firewall from inside the cab to the engine first. It is not removable from the gauge. Remove the factory unit, select the correct fitting, and attach to the engine block. Probably easier under the vehicle.
For the oil pressure, if using the tee, make sure the tee is the type that will accept a ferule fitting. It also comes with hardward to replace the original electrical sender. Unscrew and replace. It comes with plastic hose, so going thru the firewall is not a problem. Just make sure it doesn't rub against anything and use a rubber gormet if needed. A hole in the line will be quite messy.
Teflon is ok on mechanical fittings, but not on electrical senders. Electrical senders get their ground thru the treads to the block. jd
For the oil pressure, if using the tee, make sure the tee is the type that will accept a ferule fitting. It also comes with hardward to replace the original electrical sender. Unscrew and replace. It comes with plastic hose, so going thru the firewall is not a problem. Just make sure it doesn't rub against anything and use a rubber gormet if needed. A hole in the line will be quite messy.
Teflon is ok on mechanical fittings, but not on electrical senders. Electrical senders get their ground thru the treads to the block. jd
Last edited by jimdandy; Apr 11, 2007 at 10:38 AM.
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Hey thanks guys that helps out alot, now where do i find the water temp and oil pressure sensors, is there a universal location are they hard to locate, just need some idea what im looking for, thanks again for your help.
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From: Englewood, CO
Hey Scary_Fx, if you remove or don't hook up the originals via the "tee" connector, you'll probably start showing a check guage and a check engine light before long. These are hooked to the computer and tell it when the engine warms up and allows it to go to the closed loop mode, or was that open loop mode, anyway it allows it to run leaner and cheaper.
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From: Magnolia, TX
Originally Posted by rbengl
Hey Scary_Fx, if you remove or don't hook up the originals via the "tee" connector, you'll probably start showing a check guage and a check engine light before long. These are hooked to the computer and tell it when the engine warms up and allows it to go to the closed loop mode, or was that open loop mode, anyway it allows it to run leaner and cheaper.
CMOS
Last edited by CMOS; Apr 11, 2007 at 04:20 PM.
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The computer monitors the water temperature "sensor" not the sender. Two different things.
Scary_Fx - The senders are next to each other. The oil pressure sender is in the back of the cylinder head, drivers side behind the intake manifold.
The water temperature sender is down and forward in the engine block about 2 or three inches. Each will have one wire going to it.
The oil sender will be a little difficult to work with due to space limitations. The temp sender can best be accessed from underneath the truck, and probably the oil sender as well. jd
Scary_Fx - The senders are next to each other. The oil pressure sender is in the back of the cylinder head, drivers side behind the intake manifold.
The water temperature sender is down and forward in the engine block about 2 or three inches. Each will have one wire going to it.
The oil sender will be a little difficult to work with due to space limitations. The temp sender can best be accessed from underneath the truck, and probably the oil sender as well. jd
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From: Englewood, CO
Guess it would depend on what year we're talking about as well. The 84 could have these totally bypassed, both and it wouldn't matter. My 96, you as JD suggests might be able to bypass the temp sender, but if you bypass the oil it will turn on the check gauges light. In this state, that's a failure of the emission test.
Doesn't matter that you have it bypassed and have valid instruments available, the light is grounds for failure.
So guess you could remove the light, but I like having it there, just-in-case.
Doesn't matter that you have it bypassed and have valid instruments available, the light is grounds for failure.
So guess you could remove the light, but I like having it there, just-in-case.
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The computer does not need to know what the oil pressure is. The sender is just a switch anyway. It triggers at approx 7lbs oil pressure and a resistor in the circuit centers the gauge, or turns off the light, or both.
The no oil pressure circuit is part of the starting circuit. It will not allow the truck to start, or will stop it from running if there is no oil pressure. jd
The no oil pressure circuit is part of the starting circuit. It will not allow the truck to start, or will stop it from running if there is no oil pressure. jd