Question about 2003 Oldsmobile Alero

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How to replace crankshaft sensor on olds alero 2.2 2003

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It,s on the side of the engine, cleverly hidden behind the starter. disconnect your battery, then remove the starter. the sensor is behind it, held in by one bolt. if you buy your new one first, it will help you identify the one in the engine.sometimes the will rotate in the hole, but won't like to pull out. pry gently, and stick with it. it will come out . install new sensor, reinstall starter, and your all set. good luck!

Posted on Dec 30, 2010

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6ya6ya
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Posted on Jan 02, 2017

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2 Answers

Is their one or two crank sensors on a 2003 olds alero


What engine does yours have ? 2.2L 4 cyl. or 3.4 L V-6 If you have 3.4 L it has two A an B

• Crankshaft position (CKP) sensors
The CKP sensor B is a variable reluctance sensor. The magnetic field of the sensor is altered by a crankshaft mounted reluctor wheel that has seven machined slots, six of which are equally spaced 60 degrees apart. The seventh slot is spaced 10 degrees after one of the 60 degree slots. This sensor provides the ignition control module (ICM) with 7X signals, or seven pulses for each revolution of the crankshaft. The pulse from the 10 degree slot is known as the sync pulse. Both of the sensor circuits are connected to the ignition control module (ICM). A signal converter within the ICM produces digital 3X output pulse to the powertrain control module (PCM), the 3X reference is known as the low resolution engine speed signal.
The CKP sensor A contains a hall-effect switch. A hall-effect switch is a solid state switching device that produces a digital ON/OFF pulse when a rotating element passes between the sensor tip and a magnet. This rotating element is called an interrupter ring or blade. In this case the interrupter ring has 24 evenly spaced blades and windows and is part of the crankshaft damper assembly. This sensor provides the PCM with 24X signals, or 24 identical pulses per crankshaft revolution. The 24X signal is used for enhanced smoothness and idle stability at a lower calibrated RPM. The PCM supplies the sensor with a 12-volt reference, low reference, and signal circuit.

Mar 01, 2017 | 2003 Oldsmobile Alero

2 Answers

00 olds alero


Check fuse,could be starter.check battery connection, how old is battery.

May 07, 2013 | Cars & Trucks

1 Answer

My 2000 Oldsmobile Alero will turn over but wont start...any solutions to this problem? I did recently replace the crankshaft position sensor.


my sister in-laws did the exact same thing. we replaced fuel filter pump and injectors. All the time it was old spark plugs. It kept cranking but wouldn't start. spent less than $20 on new spark plugs and it fired right up and is still running strong

Jul 13, 2012 | 2000 Oldsmobile Alero

1 Answer

How do i replace crank sensor on 2000 olds alero 3.4 and where is it located


It depends on which crank sensor you are wanting to replace. There are two of them. The 24X sensor is located behind the front crankshaft pully and the crank pully must be removed to change it. The 7X sensor is located in the engine block on the right bank (firewall side) near the rear of the engine. This one simply pulls out of the block after disconnecting the electrical connector and removing the single bolt that holds it.

Dec 13, 2011 | 2001 Oldsmobile Alero

1 Answer

Where is the crank shaft sensor located on my 2000 alero?


ABOVE THE OIL FILTER ON THE 2.4 ENGINE AND THE 3.1 AND 3.4 ENGINE CRANKSHAFT SENSOR LOCATED BEHIND CRANKSHAFT PULLEY.

May 10, 2010 | 1999 Oldsmobile Alero

1 Answer

1999 Olds Alero 3400 motor -- location of Crankshaft sensor


Welcome to fixya. If you need anything else go to www.collisionrepairadvice.com here is the location.
On the lower rear of the engine (LA1) for the 7x
and for the 24x

On the lower rear of the engine (LA1

Jul 26, 2009 | 1999 Oldsmobile Alero

2 Answers

Crankshaft position sensor


the crankshaft pos. sensor is just above the oil filter. take out starter and oil filter and make sure buy a new oilfilter or just make sure that you dont destroy the one on the car . remove plug and then replace with new sensor. and make sure all rubber rings if any avalable are replaced as well. then reinstall starter and oil filter and start car

Mar 07, 2009 | 1999 Oldsmobile Alero

2 Answers

2000 alero crankshaft position sensor


yes it can stop vehicle from starting,but i would call a mobile mechanic to check it out for you,start changing bits willy nilly and it will cost you more in the long run.

Jan 23, 2009 | 2003 Oldsmobile Alero

2 Answers

1999 Alero stalling issue


check your throttle position sensor

Sep 27, 2008 | 1999 Oldsmobile Alero

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