Where to find and install oil pressure switch
The oil pressure switch should be by the oil filter. You will need a socket 1 1/8 ,I believe is the correct size.
Yes its quite likely a bad oil pressure sensor - my warning started to ding after the car was warmed up and then ding more and more.
To be sure you would need to attach an oil pressure guage to ensure the pressure is still proper - but if your engine has not seized and is still running and doesn't sound like scraping metal, there is still oil pressure.
To replace, you must access from below. You will need a 27mm (or 1-1/16") DEEP socket for the sensor - it is not possible to access with a wrench. First remove the starter motor as flollows- DISCONNECT BATTERY! The wire on the starter can easily short if you dont..Then remove heavy bracket below starter 3 bolts x 15mm. Then remove plastic cover 1 bolt x 10mm. Now you can remove the 2 starter motor bolts x 15mm. Lower the starter down and unbolt the wires x 13mm and remove other wire connector. Now you can access the sensor which is located just about the oil filter sitting horizontal pointing toward where the starter was. Remove the wire connector and slide the 27mm socket over. Now you can unscrew the old sensor out and screw the new one in - be sure to only lighten tighten - it should not be torqued very strong. Reassemble all the parts and connectors and then the battery. Hopefully this will solve the low oil pressure warning.
I found if you put jack under the engine remove engine mount taking starter off is easier
Thanks for the info on changing the sensor. Was very, very helpful. I am amazed at how difficult it is to change such a simple part on this vehicle. Believe GM could have made that task much simpler with a little engineering. Thanks again for the help!!!
I managed to replace the oil pressure sensor by only removing the black plastic guard installed under the front bumper, it is only 4 screws 10 mm socket. I first lifted the car front left wheel with a jack to get easier access while lying under for the job.
I used 27mm long socket with 1 long + 1 short ratchet extensions together then it is possible to reach the sensor. The electric plug can be reached by hand for unplug and plug back when finished.
To insert the new sensor I used paper towel inside the 27mm socket to both limit the depth of the sensor held in it and a piece of this paper squeezed between the sensor and the socket body to stop it from sliding out while reaching back in.
Took me about 40 minutes all in all...
Agree with David A. No need to remove starter, though disconnecting battery is still required as the socket can make contact with the starter cable. Takes about 10-12 inches of extensions and a wobble (u-joint) between your 27mm socket. Put the socket on the oil pressure switch and snake the extensions to it from the driver's side through the cables under the manifold. It shouldn't be real tight, and neither should the new one be as it's likely aluminum.
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SOURCE: air conditioning low pressure sensor
find the sensor that is plugged into the accumulator on passenger side normally it Will have two wires the dryer will be silver or aluminum colored unhook the connector put a paper clip in the connector if the compressor comes on then you have it, Warning if low on refrigerant you can damage the compressor if on for a long period of time, check to see if AC gets cold turn it on to Max AC fan full blast and see it it's cold, if it is the switch is bad, if it does not get cold then it needs to be serviced.
SOURCE: Have 44k on a 2008 chevy uplander. Front left
I have a 2008 as well.. with 39K and the front right needed replaced.
it was covered under the 100K warranty
SOURCE: 2008 uplander how do i reset the tire pressure
there are 2 options one with a scanner and the other with the tool that you have to place at each tire.
SOURCE: what kind of tires do I need for a 2008 chevy
Tires have many variables that affect drivability and safety...Depending on how you use your Uplander...like most things...you get what you pay for...It is usually best to stay with original tire size...ie...225/60/R16..(This confirms speedometer accuracy and tire wheelwell clearances). Comparison by mileage warranty will help assure good quality. All season tread pattern is best overall...For best ride quality the Michelin Harmony is hard to beat. Yokohama tires have proven to be great performers, but do not ride as soft as the Michelin...Goodyear design and quality is not the leader as they used to be in the 1980's...still OK but harsh ride and poor performance in slippery weather...Bridgestone is good also, but not as good as the Michelin or Yokohama...You will be pleasantly surprised with either the Michelin or Yokohama...Tire sidewalls are required to show the USDT rating for temperature and treadwear comparison...Last but just as important is tire air pressure...35 lbs psi is best for everyday driving, handling, and tread wear...Hope this helps.
SOURCE: my 2008 chevy uplander engine
You will need to get the codes checked.This will help in finding out what is causing the light to come on.Once you get the code or codes we can find out what could be causing the problem.Let me know when you get the codes and I`ll be glad to help you out.Good luck.
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