Question about 2008 Pontiac Grand Prix

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I have an 08 grand Prix the knock sensor has gone bad (bank 2) it's in between the engine and transmission, is it possible to replace it without removing the transmission?

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  • Pontiac Master
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What code did you pull ? How do you know it's bad ?
Remove the transaxle. Refer to Transmission Replacement for the 4T65-E transmission. Drain the cooling system. Refer to Cooling System Draining and Filling . Remove the bolts (2) from the knock sensor heat shield (1). Disconnect the knock sensor electrical connector (3) from the knock sensor.

Posted on Sep 14, 2016

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6 Suggested Answers

6ya6ya

6ya staff

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Posted on Jan 02, 2017

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Anonymous

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SOURCE: knock sensor location

It's under the intake manifold. To access it you have to remove the manifold and injection rail.

Posted on Dec 30, 2008

Anonymous

  • 112 Answers

SOURCE: 2002 Pontac Grand Prix GTP P0171 code engine stumbling at times

Bank 1 is the frt side exhaust manifold (did they say bank 1 sensor 1?),you can start by replacing that sensor,i would check the intake for leaks ,the gm 6cly. are known for bad intake gaskets,you will see oil coming out form the frt or rear of the intake,also check your atifreeze overflow bottle for bronwish sludge,which means that the oil is mixing with the antifreeze.A leaking intake could cause that lean condition.

Posted on Mar 29, 2009

ronaldo_ross

Ronado Panaligan

  • 1056 Answers

SOURCE: MY LEXUS IS200 SE engine management light came on

What was the code? lean mixture? If so make sure there is no leak in the exhaust. I have worked on a lexus suv, but it was an 89. It had a lean mixture code. After examination I noticed a exhaust leak which was not apparent at first, there is a section in the exhaust the is very thin, and prone to leakage, causing the lean mixture code.

Posted on Jun 30, 2009

NOT ME

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SOURCE: WHERE IS O2 SENSOR BANK 1 01 GRAND PRIX 3.8 ENGINE

Standing in front of the car looking at the engine bank 1 is the cylinders on the front of the engine. These are cylinders 1-3-5. On the rear is bank 2 cylinders 2-4-6. The O2 sensor is located screwed into the exhaust manifold or the exhaust pipe on the front of the engine.

Posted on Oct 09, 2009

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Molson02536

Harvey N Tawatao

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SOURCE: i have 2005 pontiac grand prix the code p0420

Inspect the O2 sensor after the Catalytic converter, make sure the lead wires are good and not damaged from corrosion and heat. If all wire leads seem to be good, replace the O2 sensor and try to stay away from after market sensors. They don't last long and as for your Catalytic Converter, you can check it by bang in on it to see if there are any rattles coming form the inside.
The good news about a bad Catalytic Converter is that Gm covers them under warranty for up to 8 years.
Thank you for using fixya and good luck

Posted on Jun 09, 2010

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1 Answer

Knock sensor for 2007 Saturn outlook. I can't pass emissions test!


Check engine light on ? What code ? There are many different (DTC'S) - diagnostic trouble codes that can set for knock sensors ! There all don't mean that you replace the sensor .
DTC P0324: Knock Sensor (KS) Module Performance
DTC P0325: Knock Sensor (KS) Circuit Bank 1
DTC P0326: Knock Sensor (KS) Performance
DTC P0327: Knock Sensor (KS) Circuit Low Bank 1
DTC P0328: Knock Sensor (KS) Circuit High Bank 1
DTC P0330: Knock Sensor (KS) Circuit Bank 2
DTC P0332: Knock Sensor (KS) Circuit Low Bank 2
DTC P0333: Knock Sensor (KS) Circuit High Bank 2

The knock sensor (KS) system enables the control module to control the ignition timing for the best possible performance while protecting the engine from potentially damaging levels of detonation. The sensors are located below each cylinder head on the engine block. The KS produces an AC voltage signal that varies depending on the vibration level during engine operation. The control module adjusts the spark timing based on the amplitude and the frequency of the KS signal. The control module receives the KS signal through 2 isolated signal circuits. The control module learns a minimum KS noise level at idle and uses calibrated values for the rest of the RPM range. The control module should monitor a normal KS signal within the noise channel.
Knock Sensor Replacement - Bank 1
Remove the exhaust manifold lower heat shield. Refer to Exhaust Manifold Lower Heat Shield Replacement.
Disconnect the engine wiring harness electrical connector (1) from the bank 1 knock sensor (2).
Loosen the knock sensor bolt and remove the knock sensor.
Knock Sensor Replacement - Bank 2
Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
Remove the engine oil filter. Refer to Engine Oil and Oil Filter Replacement .
Lower the vehicle.
Disconnect the engine wiring harness electrical connector (2) from the bank 2 knock sensor (3).
Loosen the knock sensor bolt and remove the knock sensor.

Nov 12, 2016 | Saturn Cars & Trucks

1 Answer

Circuit bank 2


Knock sensors are on the side of the engine block under the intake manifold. Bank 2 would be the sensor closest to the transmission above the starter as I recall.

May 24, 2014 | 1998 Volvo S70

1 Answer

Where is the knock sensor


There are two of them, they are screwed into the engine blocks cooling water jacket (where the drain plugs would have gone for the block without sensors) below the spark plugs and cylinder heads on the front and rear of the engine. See picture below. One note knock sensors seldom fail, also if you do replace it it must be carefully torqued to the proper spec (12 foot lbs I think) or it will not work correctly and that can trigger a fault code once again.

emissionwiz_231.jpg

Sep 21, 2011 | 2004 Pontiac Grand Prix

1 Answer

1990 grand prix 3.1 computer code 43


engine code 43 - electronic spart timing problem- possible knock sensor problem.. check for 5v at knock sensor wire.. if it has 5v then probably need a knock sensor.

Apr 12, 2010 | 1990 Pontiac Grand Prix

2 Answers

WHERE IS O2 SENSOR BANK 1 01 GRAND PRIX 3.8 ENGINE


Standing in front of the car looking at the engine bank 1 is the cylinders on the front of the engine. These are cylinders 1-3-5. On the rear is bank 2 cylinders 2-4-6. The O2 sensor is located screwed into the exhaust manifold or the exhaust pipe on the front of the engine.

Oct 09, 2009 | 2001 Pontiac Grand Prix

1 Answer

2002 Pontac Grand Prix GTP P0171 code engine stumbling at times


Bank 1 is the frt side exhaust manifold (did they say bank 1 sensor 1?),you can start by replacing that sensor,i would check the intake for leaks ,the gm 6cly. are known for bad intake gaskets,you will see oil coming out form the frt or rear of the intake,also check your atifreeze overflow bottle for bronwish sludge,which means that the oil is mixing with the antifreeze.A leaking intake could cause that lean condition.

Mar 29, 2009 | 1998 Pontiac Grand Prix

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