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.
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Re: crankshaft sensor for a buick rivi
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 alldatadiy.com, 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!
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Have someone take the mass air flow sensor off and clean it with a non-chrlonated brake cleaner.Make sure its dry before reinstalled and do not touch wire inside sensor with your fingers the oil from your fingers can damage it.
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 same....it'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.
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.
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 bad...it 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.
what engine? 3.0L 2 Valve? 4 Valve?
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.
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.