It's really pretty easy if you have the right tool. The sender requires a special socket. Buy a new sender from the auto parts store and rent or buy the socket from them. Disconnect the electrical connector from the old sensor. Then attach the socket to a ratchet and unscrew the old sending unit. Install the new one and reconnect the connector
Remove oxygen sensor with special socket Ricks Free Auto Repair Advice
Remove oxygen sensor with special socket Ricks Free...
Oxygen sensors can be located in...
SOURCE: DPFE Sensor with codes PO401 And PO402
The DPFE is located near the EGR valve, it has 2 very thick silicone rubber hoses connected to it that come off the exhaust. It is rectangular and about 1/2 the size of a pack of smokes
SOURCE: Oxygen Sensors
ok Bank 1 is the rear bank and bank 2 is the front bank sensor 1 in each bank is the one closest to the manifold they have green connectors sensor 2 is the sensor after the cat converter and is a blue connector
SOURCE: 05 mercury sable check engine po174
You has a vacuum leak on the engine.
In order to troubleshoot this, you must start with a clean engine wipe down.
The major offender parts are
air intake gasket on the manifold
air tube after the mass air flow sensor
rubber seal under idle air control IAC motor
===
Warm up the engine for 15-20 minutes (LEAVE THE engine at idle) then spray a little Barmen carburetor clear on the potential air leak location (ONE AT A TIME) and listen for a surge in rpm.
If the engine speed go higher that's mean the carburetor clean (ADDITIONAL FUEL) got into your engine and that's the gasket you need to change.
There may be multiple leaky spots so take your time and check all rubber gaskets,sensor and hose that are lead into the intake manifold.
When you finish fill up with one tank of Chervon to clean out the injectors.
Please post more information after your inspection.
SOURCE: 1996 oldsmobile aurora oil pressure
The Aurora is a low pressure oil system. The only solution available at this time is to increase the oil weight. I went o straight 30W to solve the idle alarm issue. Some use 20W oil and that works too.
With 20W you will be at 80 to 90psi cold then drop to 20-30psi hot.
I first replaced the oil pressure gauge and it was worse. I put the original back in and it was better. Then went to 30W and all is fine.
Running it that way for a few years now.
338 views
Usually answered in minutes!
×