Oil Pressure Gauge reading a little high. 1998 Mustang 3.8l - Ford Mustang Forum
 
LinkBack Thread Tools
post #1 of 4 (permalink) Old 02-08-2010 Thread Starter
Rookie
 
rcaldwell03's Avatar
 
Joined: Feb 2010
Location: Houston
Posts: 2
 
Question Oil Pressure Gauge reading a little high. 1998 Mustang 3.8l

I have a 98' Mustang 3.8l and the oil pressure gauge is reading between the "MA" on "NORMAL" when its usually between the "RM". Can anyone tell why it might be doing this, and what i can do to fix it. Thanks ahead of time for all advice.
rcaldwell03 is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old 02-09-2010
Apprentice
 
RenTeal's Avatar
 
Joined: Jan 2010
Location: San Jose
Posts: 141
 
Did this just start all of a sudden one day? Or has it every read unusually high or low before?
Either way, a couple of things come to mind rcaldwell.
One thing is that these gauges don't seem to be as reliable, once they get older, as the old stuff seemed to be. Too "sophisticated' by half I'd guess. The one in my '95 is all over the place, but usually stuck halfway away from where it should be.
Another is that your sending unit may be getting old and not quite working correctly.
By the same token, a wire or connector may be getting old and corroded. That used to mean a lower than normal reading, but I'm not sure it still would. Someone here should know though.
Lastly, assuming that your gauge is working correctly, there are times when oil pressures vary inside the engine. I'm sure I don't know all of them, but some are: Oil level, oil condition, filter condition, age/condition of pump, some clogging of ports and galleries inside the block. That kind of stuff.
My old 302 used to tell me when it was running more than a quart low, by going up about 15psi higher than normal.
Go figure...

Hope someone else here can help you better than me, but those are a few things that come to mind initially.
Bottom line though, I wouldn't think it's of too much concern that your pressure is up just a bit. Just yet anyway. Might be just a fluke.
If it changes again however, up or down, it'd be time to get a mechanical gauge hooked up directly to the engine to verify just where the pressure is, compared to the gauge.

Paul
RenTeal is offline  
post #3 of 4 (permalink) Old 02-09-2010 Thread Starter
Rookie
 
rcaldwell03's Avatar
 
Joined: Feb 2010
Location: Houston
Posts: 2
 
Thanks for the response. I first noticed it a few weeks ago. I was just wandering if there was anything to be concerned about. Thanks again.
rcaldwell03 is offline  
post #4 of 4 (permalink) Old 02-09-2010
Rookie
 
juscallmetj's Avatar
 
Joined: Feb 2010
Location: Frisco
Posts: 8
 
Mine reads over half way as well but as long as its in the "Normal" reading which is pretty much the whole gauge then your fine.
juscallmetj is offline  
Sponsored Links
Advertisement
 
Closed Thread

Tags
high oil pressure , oil gauge , oil pressure , oil pressure high

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Mustang Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a VALID email address for yourself, otherwise you will not receive the necessary confirmation email needed to confirm, validate and activate your new AFM member account.

Failure to provide a VALID email address, will result in the cancellation of your new AFM member account registration.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome


1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183