Question about 2006 Pontiac Grand Prix
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Posted on Jan 02, 2017
Hello! Here is a picture of the location of the front knock sensor for a 3.8 liter V6 3800 Series II (97-03)
(Please note that the engine is upside down on the stand)
There are 2 knock sensors on this engine, one on the front (as shown), and another in the rear. There isn't one on the driver's side, per se.
I recommend that you let the vehicle cool down before beginning this process. To remove this you will need a drip pan, as coolant will leak from the engine when the sensor is removed. You will need a deep well 22mm socket and torque wrench.
1. Jack up and support the vehicle on jack stands so that you can work from underneath the vehicle. Be sure to apply your emergency brake.
2. Identify the knock sensor location and remove the electrical connector on the bottom.
3. Using the deep well socket, remove the sensor from the block. Do not position yourself direcly underneath this, as coolant will begin to flow immediately from the sensor's location.
4. Your new knock sensor should come pre-coated with sealant/threadlock, just install it and tighten by hand until snug.
5. Torque the sensor to 14 ft lbs.
6. Replace the electrical connector.
7. You should flush the entire coolant system to be sure to remove any air pockets, and then refill.
Hope this helps and thanks for using FixYa!
Posted on Oct 01, 2009
It should not keep your car from turning over. During cold weather a battery is a lot of the main problems with vehicles. The battery may be completely drained, if so, there's not power to turn the engine. Are the light nice and bright (headlights, interior lights) Check the battery cables, even though you may have lights, there could still be a bad connection to the post. Clean the post and tighten.
Posted on Jan 03, 2010
SOURCE: on the 1999 grand prix
not common but if you have one you need to replace it because if you don't your car will consume more fuel because it retards the engine timing. it is usually located in the middle on the front side of the block and coolant might come out when you remove it.
Posted on Nov 13, 2010
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