Flickering oil light at idle... - TCCoA Forums
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post #1 of 7 (permalink) Old 09-04-2006, 11:40 AM Thread Starter
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Flickering oil light at idle...

My friends bird does the strangest things some times. This being one of them. its a 97 tbird with 85k or so, stock engine no mods. Recently after sitting for a while, he had his license susspended, while at an idle below 500rpm, at a stoplight for example the oil light flickers on and off. any ideas? He had an oil change less than 150 miles ago before he parked it.. any ideas?
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post #2 of 7 (permalink) Old 09-04-2006, 12:58 PM
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I would check the oil and make sure it's full. Other than that the oil sending unit is probably bad.

Here is a quote from IronChopz:

If the oil level is at the correct level, it's possible that the oil pressure sender is going bad. One thing you can try to see if it helps, is to clean the wire connector to the sender. The sender is a cylindrical shaped device with a cap and wire attached to it, located near the oil filter. Take a look underneath the driver's side of the engine, and you'll see the oil filter tucked up in a "tight" area. The sender is just next to that, towards the front of the car.

Disconnect that capped wire (wiggling it helps), and clean it out. Use a shot of brake cleaner, swab the inside of the cap with a Q-tip, repeat, then swab the inside with electrical contact cleaner. You may want to clean the connector on the sender, also.

If there's no improvement, it may be time for a new sender, which is a $5-6 part at Advance Auto Parts or AutoZone.

I experienced a similar situation a couple years ago, and the cleaning worked quite well. I just replaced the sender today; the new sender, along with a clean connection, does wonders for the way the gauge works.
Hope this helps.


These are highly engineered precision vehicles, the first step in diagnosing the problem is to strike the suspected offending part sharply and repeatedly with a blunt object, then re-test.
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post #3 of 7 (permalink) Old 09-04-2006, 03:09 PM
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Ya i agree check the oil if its fine i would highly suggest doing a quick easy mod http://forums.tccoa.com/showthread.php?t=75977 it works a heck of alot better


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post #4 of 7 (permalink) Old 09-04-2006, 03:13 PM
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I have expericanced this in other cars heres some tips.

thin oil (not likely your case, oil does get thin when it gets contaminated with fuel, or really hot oil)
crappy oil filters (walmart, etc)
failing oil pump
engine failure
sending unit
wiring for sending unit

sometimes the idle is just too low to make good oil pressure too... ive seent his one some small blocks with larger bearing clearances.
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post #5 of 7 (permalink) Old 09-04-2006, 03:20 PM
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Originally Posted by lemons
crappy oil filters (Fram, etc)
Fixed that for ya . . . there's nothing wrong with some of the filters wal-mart sells (*cough* Motorcraft).

"Won't work, can't be done"
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post #6 of 7 (permalink) Old 09-04-2006, 03:28 PM
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its the sending unit. If the pump is failing, you would know quick, fast, and in a hurry.

"Booyah". Stu Scott.
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post #7 of 7 (permalink) Old 09-04-2006, 06:31 PM Thread Starter
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Figured it out today, the air tube asnt tightened down properly, so add that to your list of possiable fixes ^^.

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