Question about 1995 Buick Riviera

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Crankshaft sensor for a buick rivi

How do i install a crankshaft sensor for a buick riviera? its a 1995. Where is it? Is it easy to get to. I took it in the advanced auto they put a machine on it to read the memory code. it came up with the crankshaft sensor.
my riviera has been stalling when i back up or go forward when you accelerate. You do not have to even hit the gas hard it will stall. runs ok when you get past the few seconds of accelerating.

please email me at

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A couple of things, try unplging it and pluging it back in, I can't give you model specific info but I can tell you exactly where to get it. The sensor will be located, most probably behind your harmonic balancer or on your fly wheel at the rear of the engine, If your really interested in how to do a professional repair, you should get a subscrition to, it is worth the twenty bucks if you want to maintain your auto like the factory suggest, includes trouble shooting charts, just like we all use in the auto repair industry. Hope this helps you!

Posted on Dec 27, 2008


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Have a 1995 Buick Regal Custom. Check engine light came on. Had sensors tested and showed cam and crank sensors. Had both replaced. Check engine light still comes on. Sits a while and light goes off...

May have a grab bag of problems.

For starters, check running fuel pressure and also check for proper operation of fuel pressure regulator. Dirty injectors could play a role here

If fuel filter hasn't been replaced, might be a good time to do so.

Look at condition of plugs, wire, and air filter. All of these could contribute to problem.

As to the testing showing both the cam position sensor and the crankshaft position sensor being bad at the's certainly possible, but in my mind, a little unlikely. There may be a deeper issue here that your man hasn't yet discovered.

The description "seems to be choking for air" really makes me think of fuel starvation. If it were me, the first thing I'd do is replace the fuel filter and see what (if any) difference that makes.

In any event, good luck! Hope this was of some small degree of help to you.

Feb 13, 2011 | 1995 Buick Regal

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I need to know where a crank sensor is located on a 1995 buick century?? And also need to know where the cam sensor is located

Crank sensor is in back of harmanic pulley (crankshaft), and camshaft sensor is on front of timing chain cover.

Aug 19, 2010 | 1995 Buick Century

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My 2004 Buick Rendezvous service engine light is on. Advanced Auto ran diagnostics and P0327 & P0336 was listed on the diagnostics. The car misses here and there. I also have to try to crank the car...

P0327 Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor). This is mounted right on the block with a pigtail connector attached to it. Easy to replace and cheap.

The hard starting is caused by the
P0336 Crankshaft Position Sensor. Again, not overly difficult.

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Engine is hard to start hesitates & jerks while driving. replaced crank senor & cam senor

Hello There

Sorry to hear that. Did you make sure to align the crankshaft sensor properly? I own a Buick Park Avenue with the same engine as the Riviera (except mine is not supercharged). It's very critical that you make sure you align the crankshaft sensor properly or it will cause severe damage to the harmonic balancer/vibration, also know as the crankshaft pulley. Make sure the fins on the back of the Haramonic Balancer pass through the crankshaft sensor properly. You can obtain the alignment tool from your local Autozone.

Also check that the crankshaft pulley is not sticking and pulling your serpentine bolt while your driving. Take the serpentine belt off and inspect all of the pulleys on your serpentine belt drive. Make sure nothing is sticking, if it is, replace the colporate immediately. This could explain the jerking motion you feel while driving. Make sure you replace the belt just the same way it came off.

If you unsure of any repair procedure, acquire a Haynes auto repair manual for the 1995 Buick Riviera from your local auto parts store.

I consider it to have the most reliable and accurate repair info available to the consumer public.

Just for the heck of it, check your spark plugs. If you haven't replace and gaped them in the last 50.000 miles their probably due for replacement. You'd be amazed what kind of problems a bad spark plug can cause. On the 3.8 liter V6 the gap is 0.60 (sixty thousands of an inch)

Make sure that your brakes are not sticking while you are driving, and that the parking brake has been released before you put the car into gear.

And one last thing. Unlike the Park Avenue where you can get away with using cheap unleaded gas, nothing less than premium fuel will do in the
Riviera. Because of their high powered supercharged engines, if your using anything less than premium unleaded gas, your starving your engine to death.

Hope this helps

Good Luck!

May 24, 2010 | 1995 Buick Riviera

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Crankshaft posistion sensor or ignition control module?

1) do you have a Check Engine Light On while running? If so find out what the code is
2) these engines are known for their CPS going can be tested on the car with a volt meter and turning the engine, but it isnt easy....I would have to err in the direction of changing the Crank Position Sensor.

Jan 11, 2010 | 1995 Buick Regal

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Need to know what fires coil 1995 mercury sable both wires to coil have power when key is turned on car cranks no spark from coil new coil what gives the coil extra power to fire

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3.4L SHO engine?

The PCM (engine computer) fires the coils, but it is never the cause of a problem. I suspect it is the crankshaft position sensor on the front of the engine by the crank pulley. easy to change.

Crankshaft Position Sensor The crankshaft position sensor (CKP sensor) (6C315) is a variable reluctance sensor triggered by a 36-minus-1 tooth trigger wheel located on the crankshaft pulley and damper. The signal generated from the crankshaft position sensor is called the crankshaft position (CKP) signal, which provides base timing and crankshaft speed (rpm) information to the ignition control module (ICM) (12K072). Base timing is set at 10±2 degrees before top dead center (BTDC) AND IS NOT ADJUSTABLE. The powertrain control module (PCM) (12A650) will use this information with the spark advance information to determine ignition coil (12029) turn on or turn off time.

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My 1995 buick lesabre check engine light is on

Take it to a real mechanic, not the phoney physics at the zone. The speed sensor will not respond if the car is not moving. May be an air flow sensor. They will go bad if it has ever been wet. They can be checked with a scan tool.

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Check for spark during the stop .. if possible.. Most ofen this is the crankshaft sensor.. very common for this engine.. sorry.. $200 to replace...

Apr 14, 2009 | 1995 Buick LeSabre

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