it's on a 1994 chevy silverado pick-up
2006-06-21 16:25:44 · 10 answers · asked by Vickie 1 in Cars & Transportation ➔ Maintenance & Repairs
Check your oil pressure, before driving it anymore. Could be a pressure switch, pump, etc something that can be replaced and you still get more life out of the car. If it's the bearings then start adding heavier oil and drive it till it dies or you rebuild it.
2006-06-21 18:21:11 · answer #1 · answered by Patrick M 3 · 0⤊ 0⤋
Sometimes the oil pressure can vary. The pump is driven by the camshaft, so, when the engine speed rises, the pump speed goes up, and thus, the oil pressure goes up. It is normal for the oil pressure to vary, the typical pressure is 60 psi or so, but it can go as low as 20 psi without any ill effect, it varies depending on the manufacturer. If it goes low enough to cause problems, the 'idiot light' will illuminate (all cars have one, the most catastrophic thing that can happen to a motor is a loss of all oil pressure). If that happens, shut the car off immediately. For now, try putting a little bit heavier oil in and see if that improves it. If you usually use 10W-30, try 10W-40. If you see no difference and are still concerned, take it to a mechanic.
2006-06-21 23:34:55 · answer #2 · answered by Harry 5 · 0⤊ 0⤋
Assuming you checked the oil, it is probably either the oil pump itself, or the main bearings are worn out. If it isn't knocking yet, it could run like that for a long time. Put in some heavier oil and drive it till it knocks. Then rebuild it as soon as it starts to make knocking noises. I've had engines run for 50K miles like that.
This is what happens when you don't change the oil enough.
2006-06-21 23:31:34 · answer #3 · answered by auntiegrav 6 · 0⤊ 0⤋
hi,
common problem on chevy, camshaft bearing goes bad. the oil pressure sensor is located on top of the engine. so when cam. bearing goes bad you lose Pressure at the cam bearing, so the sensor is not reading any pressure. when you give it gas the oil pump, pumps more oil so you get a good reading.
2006-06-22 11:38:45 · answer #4 · answered by alphavalleies 2 · 0⤊ 0⤋
It can be a few things but to figure it out you must start by checking your oil level. Make sure its topped up, run it for a few minutes then check the gage again.If it still shows post question again but indicate that your oil level is fine.
2006-06-21 23:32:33 · answer #5 · answered by Anonymous · 0⤊ 0⤋
you have low oil or a bad or weak oil pressure switch.
2006-06-21 23:52:44 · answer #6 · answered by Jose O 1 · 0⤊ 0⤋
it's worn out. the motor. 40 wt oil will fix it for a while.
2006-06-21 23:33:10 · answer #7 · answered by fooz1 4 · 0⤊ 0⤋
how much oil is in your oil pan? mine 1989 chev did that when it was starting to get low on oil.
2006-06-21 23:31:25 · answer #8 · answered by zippo 3 · 0⤊ 0⤋
check your oil level..(if the oil light is on), or take it to a mechanic, or dealership if thats where you bought it.
2006-06-21 23:31:30 · answer #9 · answered by elyk1313 1 · 0⤊ 0⤋
I'm gonna guess on this one........??????? Engine problems?? Bearing failure???
2006-06-21 23:28:10 · answer #10 · answered by arabslayer34 3 · 0⤊ 0⤋