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Author
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Topic: 87 Foxbody oil pressure guage not working
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kuku93
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Member # 14014
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posted
 
 
So after I started my car first time after the build, 'my oil pressure gauge does not work. I know for a fact before I put the motor in we tested the oil pressure with the drill and was working. I have a new sending unit on it. I'm not sure what it can be. Also have an aftermarket rear sump with no oil pressure sensor on it. Can that be the reason why?
Posts: 154 | Registered: Apr 2015
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1fastmach1
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Member # 10137
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posted
get a mechanical one with a copper line and call it a day
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REDLINE MOTORSPORTS CC EST 2011
1993 CHP sold
2004 mach 1 408 Windsor n20 fed
R.I.P. JORGE GUTIERREZ JR
6/13/1982- 11/05/2013
Posts: 2592 | From: clawwwitter to 7th st | Registered: Jul 2010
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kuku93
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Member # 14014
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posted
quote:
Originally posted by 1fastmach1:
get a mechanical one with a copper line and call it a day
Will do! Thank you
Posts: 154 | Registered: Apr 2015
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WANARNM
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Member # 587
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posted
When you say you tested it with a drill you mean prime the oil pump?
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89’ Hatch. Completely stock.
Posts: 1390 | From: San Jose | Registered: Nov 2001
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Stangn5oh
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Member # 10875
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posted
yup just buy a mechanical oil pressure gauge and do not use the plastic line it comes with.
spend about $10-15 more for the copper line. it has the same install as the plastic and you dont have to worry about the plactic cracking and having a unknown oil leak.
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88 lx
17 Renegade turbo
18 Compass 4x4
Hit the gasser, go faster, all u heard was dual exhaust n flowmasters.
Posts: 1643 | From: Sacramento | Registered: Apr 2011
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KevinK
Tech Mod
Member # 9234
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posted
Ford changed the sending unit in 88. Previously they were 1969 to 1987 the same (part number was updated in 1984). Not sue what the change was for 88. Did you get the right one?
[ 2016-12-15, 09:35 AM: Message edited by: KevinK ]
Posts: 197 | From: San Mateo, CA | Registered: Jun 2009
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Martinna
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Member # 12493
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posted
Can you go to an electronics parts store and get a 10 ohm and 75 ohm resistor? Connect the 10 ohm resistor between ground and the sensor wire. The gauge should read max high. Connect the 75 ohm resistor between ground and the sensor wire. The gauge should read min low. You can do the same resistor test with the temp gauge. This test will tell you if the problem is with the sending unit or upstream.
Posts: 1093 | From: City | Registered: Oct 2012
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kuku93
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Member # 14014
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posted
I solved it. Just bought a mechanic gauge. Pressure is at 60lb. It's good
Posts: 154 | Registered: Apr 2015
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