NEED HELP, Oil Pump 1997

[giorgio66613]

Hi Everybody,
I need some information on the oil pump on my 1997 park avenue. Oil light remains on after doing the reset test but after looking at the engine info I found that it tells me that oil pressure is at 0psi. I then took off the oil cap and found the upper end bone dry. Oil change was done so there is the right amount of oil in the car. So I was gonna change out the oil pressure sending unit but I'm pretty sure that its the oil pump that kicked it. So I wanted to know if anybody has had the same problem or if they know where the oil pump is located so I can buy the repair kit and fix it. I would also appreciate some insight on the procedure of installing the repair kit. Thanks I greatly appreciate it.

 

[Spriteman]

You might want to drain the oil and drop your oil pan to make sure nothing crazy is going on in there. There might be something that could give you a clue about what the problem might be. Maybe the oil pump intake screen is clogged?

Here's an older post that could help you with your diagnosis: http://buickforums.com/forums/showthread.php?t=31038&highlight=oil+pump+replacement

Are you getting any oil pressure readings at all on your instrument cluster? If it goes to 129 or some crazy high number it's a bad sensor.

Oil Pan Replacement

Removal Procedure

Caution!
Remove the oil level sensor, located in the oil pan, before the oil pan is removed. The sensor may be damaged if the oil pan is removed first.

1 - Raise the vehicle. Suitably support the vehicle.
2 - Drain the engine oil.
3 - Remove the flywheel cover.
4 - Remove the oil level sensor.
5 - Remove the oil filter.
6 - Remove the oil pan bolts.
7 - Remove the oil pan.
8 - Remove the oil pump pipe and screen.

See attached images

 

[J57ltr]

Remove the sender (good luck with that by the way it's a PITA), then start the engine and see if oil starts shooting out. (it would be better to plug a gauge into the hole (it’s ¼” NPT by the way).

99% of the time it's the sending unit. I had mine fail, and the oil was leaking past the connector and actually pushed the connector out (since it's a water tight seal) and dripped oil all over.

I have rarely ever seen an oil pump go bad. I have had the pickup fall off, I have had a distributor shaft break but I have never had a pump completely fail. Other problems were defective oil filter (it was the orange Fram with the grip stuff on it, there were actually several guys that had that problem). And once a piece of paper was stuck to the inside of the pickup, where it came from who knows.

Jeff

 

[giorgio66613]

You might want to drain the oil and drop your oil pan to make sure nothing crazy is going on in there. There might be something that could give you a clue about what the problem might be. Maybe the oil pump intake screen is clogged?

Here's an older post that could help you with your diagnosis: http://buickforums.com/forums/showthread.php?t=31038&highlight=oil+pump+replacement

Are you getting any oil pressure readings at all on your instrument cluster? If it goes to 129 or some crazy high number it's a bad sensor.

Oil Pan Replacement

Removal Procedure

Caution!
Remove the oil level sensor, located in the oil pan, before the oil pan is removed. The sensor may be damaged if the oil pan is removed first.

1 - Raise the vehicle. Suitably support the vehicle.
2 - Drain the engine oil.
3 - Remove the flywheel cover.
4 - Remove the oil level sensor.
5 - Remove the oil filter.
6 - Remove the oil pan bolts.
7 - Remove the oil pan.
8 - Remove the oil pump pipe and screen.

See attached images

hey Spriteman,
I am not seeing any crazy readings at the instrument cluster. All its telling me is the there is no oil pressure-Oil Pressure at 0 PSI. I have not had time to crawl under the care but i will find sometime this weekend, thanks for your input guys i will be sure to get back to both of you on the matter.
-Giorgio

 

[giorgio66613]

Remove the sender (good luck with that by the way it's a PITA), then start the engine and see if oil starts shooting out. (it would be better to plug a gauge into the hole (it’s ¼” NPT by the way).

99% of the time it's the sending unit. I had mine fail, and the oil was leaking past the connector and actually pushed the connector out (since it's a water tight seal) and dripped oil all over.

I have rarely ever seen an oil pump go bad. I have had the pickup fall off, I have had a distributor shaft break but I have never had a pump completely fail. Other problems were defective oil filter (it was the orange Fram with the grip stuff on it, there were actually several guys that had that problem). And once a piece of paper was stuck to the inside of the pickup, where it came from who knows.

Jeff

Hey Jeff, Where is the sending unit located and what is the procedure for doing this? i'd like to try this then replacing the oil pump. Thanks buddy.

 

[giorgio66613]

You might want to drain the oil and drop your oil pan to make sure nothing crazy is going on in there. There might be something that could give you a clue about what the problem might be. Maybe the oil pump intake screen is clogged?

Here's an older post that could help you with your diagnosis: http://buickforums.com/forums/showthread.php?t=31038&highlight=oil+pump+replacement

Are you getting any oil pressure readings at all on your instrument cluster? If it goes to 129 or some crazy high number it's a bad sensor.

Oil Pan Replacement

Removal Procedure

Caution!
Remove the oil level sensor, located in the oil pan, before the oil pan is removed. The sensor may be damaged if the oil pan is removed first.

1 - Raise the vehicle. Suitably support the vehicle.
2 - Drain the engine oil.
3 - Remove the flywheel cover.
4 - Remove the oil level sensor.
5 - Remove the oil filter.
6 - Remove the oil pan bolts.
7 - Remove the oil pan.
8 - Remove the oil pump pipe and screen.

See attached images

0 oil pressure sprite man, so this tells me that the oil pressure sending unit is out of the question. i will remove the pan and see what kinda mess is happening in the oil pan, i pray that it is a simple clogged screen. But i've been working on luxury cars so I'm sure it'll be just another day for me(Lexus ls400 to be exact). These luxury cars are nice but a pain in the ass to repair if something happens. Small price to pay for looking cool and ridin' smooth.

-Giorgio

 

[giorgio66613]

fixed the problem, simple fix, broken oil pressure and temp sensor. 63 psi for oil pressure now. thanks guys. stupid engineers mounting sensor near cv axle.

 

[Spriteman]

That's good news Giorgio - it always nice to find a simple solution to these problems - of course that's not always the case.

 

[HotZ28]

Just a note to others who may read this thread. The pressure sensor can fail with showing high pressure (123-psi) or (0) no pressure. They can also develop a leak through the top @ the terminal connector. These are typical failures.