Oil Pressure

wrote in message

> My oil light goes on intermittently. When I start up, it's okay. After
> driving around for about 15 minutes, it comes on, sometimes steady,
> sometimes it flickers on and off. It was on while I was at a stop
> light, so I turned the engine off and back on, and the light went off.
> I did the same thing in my driveway when I got home and the same thing
> happened, it went out when I restarted the engine. I have it idleing
> in my driveway and the light is staying off.
>
> I thought I had a short in the sender harness because it was rubbing
> the belt. I moved it out of the way, and still have the probelm. I
> wiggled the harness and nothing happens with the light.
>
> I just had the oil and filter changed. That didn't help.
>
> I would appreciate any suggestions.
>
> Thanks.
>

There are generally 2 things that make low oil pressure warning lights
flicker:
1) Low oil pressure - possible causes of low oil pressure are a blockage
(i.e., sludge); bad oil pump; and excessive bearing clearance. Sludge or
oil gelling seems to build up if the oil has not been changed for 9,000 or
more miles. Check for sludge buildup by removing one of the valve covers.
Check oil pressure by removing the oil pressure sender, installing an oil
pressure gauge, and measuring oil pressure.

2) Problem with the oil pressure sender and/or sender circuit. If the oil
pressure sender is leaking, the low oil pressure light may come on, and a
damaged wire could also make the light come on.
--

Ray O
(correct punctuation to reply)
 >> Stay informed about: Oil Pressure 

wrote in message

> My oil light goes on intermittently. When I start up, it's okay. After
> driving around for about 15 minutes, it comes on, sometimes steady,
> sometimes it flickers on and off. It was on while I was at a stop
> light, so I turned the engine off and back on, and the light went off.
> I did the same thing in my driveway when I got home and the same thing
> happened, it went out when I restarted the engine. I have it idleing
> in my driveway and the light is staying off.

Do you have enough oil? What viscosity? What brand of filter was used?

At 225000 miles, you should be using 10W30 or 10W40

sd
 >> Stay informed about: Oil Pressure 

On Feb 25, 7:03 am, "Stewart DIBBS" wrote:
> wrote in message
>
>
>
> > My oil light goes on intermittently. When I start up, it's okay. After
> > driving around for about 15 minutes, it comes on, sometimes steady,
> > sometimes it flickers on and off. It was on while I was at a stop
> > light, so I turned the engine off and back on, and the light went off.
> > I did the same thing in my driveway when I got home and the same thing
> > happened, it went out when I restarted the engine. I have it idleing
> > in my driveway and the light is staying off.
>
> Do you have enough oil? What viscosity? What brand of filter was used?
>
> At 225000 miles, you should be using 10W30 or 10W40
>
> sd

I would like to replace the oil pressure switch, but i'm not sure
which one it is. Chilton's manual doesn't show a picture. I think it's
right above the timing marks, with only one wire going to it. If
that's it, does someone know an easy way to get it out? Chilton
overlooks the difficulty of its location.

I just changed the oil. It's 10W30, with a new filter.
 >> Stay informed about: Oil Pressure 

wrote in message

> On Feb 25, 7:03 am, "Stewart DIBBS" wrote:
>> wrote in message
>>
>>
>>
>> > My oil light goes on intermittently. When I start up, it's okay. After
>> > driving around for about 15 minutes, it comes on, sometimes steady,
>> > sometimes it flickers on and off. It was on while I was at a stop
>> > light, so I turned the engine off and back on, and the light went off.
>> > I did the same thing in my driveway when I got home and the same thing
>> > happened, it went out when I restarted the engine. I have it idleing
>> > in my driveway and the light is staying off.
>>
>> Do you have enough oil? What viscosity? What brand of filter was used?
>>
>> At 225000 miles, you should be using 10W30 or 10W40
>>
>> sd
>
> I would like to replace the oil pressure switch, but i'm not sure
> which one it is. Chilton's manual doesn't show a picture. I think it's
> right above the timing marks, with only one wire going to it. If
> that's it, does someone know an easy way to get it out? Chilton
> overlooks the difficulty of its location.
>
> I just changed the oil. It's 10W30, with a new filter.
>

I am not aware of any tricks to remove the oil pressure switch. Just unplug
the wire and reach down there with the appropriate tool.
--

Ray O
(correct punctuation to reply)
 >> Stay informed about: Oil Pressure 

On Mon, 05 Mar 2007 01:17:55 -0600, Ray O wrote:

>
> wrote in message
>
>> On Feb 25, 7:03 am, "Stewart DIBBS" wrote:
>>> wrote in message
>>>
>>>
>>>
>>> > My oil light goes on intermittently. When I start up, it's okay.
>>> > After driving around for about 15 minutes, it comes on, sometimes
>>> > steady, sometimes it flickers on and off. It was on while I was at a
>>> > stop light, so I turned the engine off and back on, and the light
>>> > went off. I did the same thing in my driveway when I got home and the
>>> > same thing happened, it went out when I restarted the engine. I have
>>> > it idleing in my driveway and the light is staying off.
>>>
>>> Do you have enough oil? What viscosity? What brand of filter was used?
>>>
>>> At 225000 miles, you should be using 10W30 or 10W40
>>>
>>> sd
>>
>> I would like to replace the oil pressure switch, but i'm not sure which
>> one it is. Chilton's manual doesn't show a picture. I think it's right
>> above the timing marks, with only one wire going to it. If that's it,
>> does someone know an easy way to get it out? Chilton overlooks the
>> difficulty of its location.
>>
>> I just changed the oil. It's 10W30, with a new filter.
>>
>>
> I am not aware of any tricks to remove the oil pressure switch. Just
> unplug the wire and reach down there with the appropriate tool.


Where the heck is it on a Supra 7M-GE? I've had the sending unit since
April but can't find it on the car!
 >> Stay informed about: Oil Pressure 

On Tue, 06 Mar 2007 03:59:42 GMT, Hachiroku ????
wrote:
>On Mon, 05 Mar 2007 01:17:55 -0600, Ray O wrote:

>> I am not aware of any tricks to remove the oil pressure switch. Just
>> unplug the wire and reach down there with the appropriate tool.
>
>Where the heck is it on a Supra 7M-GE? I've had the sending unit since
>April but can't find it on the car!

It'll take two people - one person reaches back behind the gauge
cluster and tugs on the oil sender wire, and the other person is under
the hood looking for the other end of the wire to move... ;-P

...

<Barrrrump-Bump!>

...

Thank you! Thank you very much! I'll be here all week...

...


Seriously, there aren't too many places they can hide it. It has to
be on the side of the block along a main oil gallery. Or on the oil
filter adapter, or possibly near where the oil pump is - and the oil
pump is usually on the bottom end of the distributor shaft.

It can be hiding underneath the alternator or the PS Pump, with the
wire in the same harness till it branches off in a dark spot - so you
get a hand inspection mirror with an extension arm and a good
flashlight, and check all the nooks and crannies.

If you were a telephone man I'd tell you to pop the cluster and put
"flicker tone" trace tone on the sender wire. Then you use an
inductive pickup "banana probe" to find the wire heading to the gauge
sender - works just like a Geiger counter, the louder it gets the
closer you are. Follow the main harness and as the wire branches off
you follow it...

You have the new gauge sender, chances are they both look the same.

--<< Bruce >>--
 >> Stay informed about: Oil Pressure 

"Hachiroku ????" wrote in message

> On Tue, 06 Mar 2007 11:18:47 -0600, Ray O wrote:
>
>>
<snipped>
>>>
>>>
>> From underneath the car, look up above the oil pan, behind the cooling
>> fan.
>
>
> I tried that, but with the car on the ground. I have some 8,000 lb ramps
> now, and a REAL jack, so I'll have a go when I roll it out of the garage
> in a few weeks...
>
At least drive one side of the car up onto a curb to provide a little more
clearance underneath!
--

Ray O
(correct punctuation to reply)
 >> Stay informed about: Oil Pressure 

On Tue, 06 Mar 2007 05:31:23 +0000, Bruce L. Bergman wrote:

> On Tue, 06 Mar 2007 03:59:42 GMT, Hachiroku ???? wrote:
>>On Mon, 05 Mar 2007 01:17:55 -0600, Ray O wrote:
>
>>> I am not aware of any tricks to remove the oil pressure switch. Just
>>> unplug the wire and reach down there with the appropriate tool.
>>
>>Where the heck is it on a Supra 7M-GE? I've had the sending unit since
>>April but can't find it on the car!
>
> It'll take two people - one person reaches back behind the gauge
> cluster and tugs on the oil sender wire, and the other person is under the
> hood looking for the other end of the wire to move... ;-P
>
> ..
>
> <Barrrrump-Bump!>
>
> ..
>
> Thank you! Thank you very much! I'll be here all week...
>
> ..
>
>
> Seriously, there aren't too many places they can hide it. It has to
> be on the side of the block along a main oil gallery. Or on the oil
> filter adapter, or possibly near where the oil pump is - and the oil pump
> is usually on the bottom end of the distributor shaft.
>
> It can be hiding underneath the alternator or the PS Pump, with the
> wire in the same harness till it branches off in a dark spot - so you get
> a hand inspection mirror with an extension arm and a good flashlight, and
> check all the nooks and crannies.
>
> If you were a telephone man I'd tell you to pop the cluster and put
> "flicker tone" trace tone on the sender wire. Then you use an inductive
> pickup "banana probe" to find the wire heading to the gauge sender - works
> just like a Geiger counter, the louder it gets the closer you are. Follow
> the main harness and as the wire branches off you follow it...
>
> You have the new gauge sender, chances are they both look the same.
>
> --<< Bruce >>--


http://www.supra.co.nz/87tsrm/Lubrication/lub05.htm

and I STILL can't find it!
 >> Stay informed about: Oil Pressure 

"Hachiroku ????" wrote in message

> On Tue, 06 Mar 2007 05:31:23 +0000, Bruce L. Bergman wrote:
>
>> On Tue, 06 Mar 2007 03:59:42 GMT, Hachiroku ???? wrote:
>>>On Mon, 05 Mar 2007 01:17:55 -0600, Ray O wrote:
>>
>>>> I am not aware of any tricks to remove the oil pressure switch. Just
>>>> unplug the wire and reach down there with the appropriate tool.
>>>
>>>Where the heck is it on a Supra 7M-GE? I've had the sending unit since
>>>April but can't find it on the car!
>>
>> It'll take two people - one person reaches back behind the gauge
>> cluster and tugs on the oil sender wire, and the other person is under
>> the
>> hood looking for the other end of the wire to move... ;-P
>>
>> ..
>>
>> <Barrrrump-Bump!>
>>
>> ..
>>
>> Thank you! Thank you very much! I'll be here all week...
>>
>> ..
>>
>>
>> Seriously, there aren't too many places they can hide it. It has to
>> be on the side of the block along a main oil gallery. Or on the oil
>> filter adapter, or possibly near where the oil pump is - and the oil pump
>> is usually on the bottom end of the distributor shaft.
>>
>> It can be hiding underneath the alternator or the PS Pump, with the
>> wire in the same harness till it branches off in a dark spot - so you get
>> a hand inspection mirror with an extension arm and a good flashlight, and
>> check all the nooks and crannies.
>>
>> If you were a telephone man I'd tell you to pop the cluster and put
>> "flicker tone" trace tone on the sender wire. Then you use an inductive
>> pickup "banana probe" to find the wire heading to the gauge sender -
>> works
>> just like a Geiger counter, the louder it gets the closer you are.
>> Follow
>> the main harness and as the wire branches off you follow it...
>>
>> You have the new gauge sender, chances are they both look the same.
>>
>> --<< Bruce >>--
>
>
> http://www.supra.co.nz/87tsrm/Lubrication/lub05.htm
>
> and I STILL can't find it!
>
>

From underneath the car, look up above the oil pan, behind the cooling fan.
--

Ray O
(correct punctuation to reply)
 >> Stay informed about: Oil Pressure 

On Tue, 06 Mar 2007 13:25:53 -0600, Ray O wrote:

>
> "Hachiroku ????" wrote in message
>
>> On Tue, 06 Mar 2007 11:18:47 -0600, Ray O wrote:
>>
>>
> <snipped>
>>>>
>>>>
>>> From underneath the car, look up above the oil pan, behind the cooling
>>> fan.
>>
>>
>> I tried that, but with the car on the ground. I have some 8,000 lb ramps
>> now, and a REAL jack, so I'll have a go when I roll it out of the garage
>> in a few weeks...
>>
> At least drive one side of the car up onto a curb to provide a little more
> clearance underneath!


That car is LOW!!! It is a real pain to work on, even WITH ramps. Makes it
better, though. I had a small problem after we changed the fuel tank last
year, and I was able to get the @ss of the car up in the air enough to be
able to get up there.

With a 'taller' car like the Mazda, I was able to replace the muffer with
little problem, it ot so high in the air!

Now, I need a creeper. What I'd really like is a "rotisserie"! Lock the
car in, and turn it one way or another! Would really come in handy for the
Hachiroku!
 >> Stay informed about: Oil Pressure 

"Hachiroku ????" wrote in message

> On Tue, 06 Mar 2007 13:25:53 -0600, Ray O wrote:
>
>>
>
> Now, I need a creeper. What I'd really like is a "rotisserie"! Lock the
> car in, and turn it one way or another! Would really come in handy for the
> Hachiroku!


I have 2 creepers, 1 is a Snap-On that was my dad's and is probably around
50 years old. It has wheel hubs that look like they are mangles but allow
for movement in any direction while keeping the deck about an inch off the
ground. The deck is wood, and I think the head cushion is leather! I
wanted to hang it over the fireplace mantle but Mrs. O put the kibosh on it.
Maybe if I clean up the wheels, it will make a nice "recliner" for watching
TV

With as many cars as you have, you should invest in a real lift!
--

Ray O
(correct punctuation to reply)
 >> Stay informed about: Oil Pressure 

On Tue, 06 Mar 2007 11:18:47 -0600, Ray O wrote:

>
> "Hachiroku ????" wrote in message
>
>> On Tue, 06 Mar 2007 05:31:23 +0000, Bruce L. Bergman wrote:
>>
>>> On Tue, 06 Mar 2007 03:59:42 GMT, Hachiroku ????
>>> wrote:
>>>>On Mon, 05 Mar 2007 01:17:55 -0600, Ray O wrote:
>>>
>>>>> I am not aware of any tricks to remove the oil pressure switch. Just
>>>>> unplug the wire and reach down there with the appropriate tool.
>>>>
>>>>Where the heck is it on a Supra 7M-GE? I've had the sending unit since
>>>>April but can't find it on the car!
>>>
>>> It'll take two people - one person reaches back behind the gauge
>>> cluster and tugs on the oil sender wire, and the other person is under
>>> the
>>> hood looking for the other end of the wire to move... ;-P
>>>
>>> ..
>>>
>>> <Barrrrump-Bump!>
>>>
>>> ..
>>>
>>> Thank you! Thank you very much! I'll be here all week...
>>>
>>> ..
>>>
>>>
>>> Seriously, there aren't too many places they can hide it. It has to
>>> be on the side of the block along a main oil gallery. Or on the oil
>>> filter adapter, or possibly near where the oil pump is - and the oil
>>> pump is usually on the bottom end of the distributor shaft.
>>>
>>> It can be hiding underneath the alternator or the PS Pump, with the
>>> wire in the same harness till it branches off in a dark spot - so you
>>> get a hand inspection mirror with an extension arm and a good
>>> flashlight, and check all the nooks and crannies.
>>>
>>> If you were a telephone man I'd tell you to pop the cluster and put
>>> "flicker tone" trace tone on the sender wire. Then you use an
>>> inductive pickup "banana probe" to find the wire heading to the gauge
>>> sender - works
>>> just like a Geiger counter, the louder it gets the closer you are.
>>> Follow
>>> the main harness and as the wire branches off you follow it...
>>>
>>> You have the new gauge sender, chances are they both look the same.
>>>
>>> --<< Bruce >>--
>>
>>
>> http://www.supra.co.nz/87tsrm/Lubrication/lub05.htm
>>
>> and I STILL can't find it!
>>
>>
>>
> From underneath the car, look up above the oil pan, behind the cooling
> fan.


I tried that, but with the car on the ground. I have some 8,000 lb ramps
now, and a REAL jack, so I'll have a go when I roll it out of the garage
in a few weeks...
 >> Stay informed about: Oil Pressure 

On Tue, 06 Mar 2007 15:26:54 -0600, Ray O wrote:

>
> "Hachiroku ????" wrote in message
>
>> On Tue, 06 Mar 2007 13:25:53 -0600, Ray O wrote:
>>
>>
>>>
>> Now, I need a creeper. What I'd really like is a "rotisserie"! Lock the
>> car in, and turn it one way or another! Would really come in handy for
>> the Hachiroku!
>
>
> I have 2 creepers, 1 is a Snap-On that was my dad's and is probably around
> 50 years old. It has wheel hubs that look like they are mangles but allow
> for movement in any direction while keeping the deck about an inch off the
> ground. The deck is wood, and I think the head cushion is leather! I
> wanted to hang it over the fireplace mantle but Mrs. O put the kibosh on
> it. Maybe if I clean up the wheels, it will make a nice "recliner" for
> watching TV
>
> With as many cars as you have, you should invest in a real lift!


LOL! Believe me, the thought has crossed my mind...on MANY occasions!
 >> Stay informed about: Oil Pressure