Camshaft position sensor how do I change this not the crankshaft shaft position sensor cam 98 Tahoe 4x4 5.7

Which engine ? This vehicle had option of six different engines , 2.4 , 3.5 , 2.8 , 3.0 , 3.2 , 3.6 And are you picking on the right part ? What code > DTC P0010: Intake Camshaft Position (CMP) Actuator Solenoid Control Circuit

DTC P0013: Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit
It may not even be a cam sensor problem !
DTC P0340: Intake CMP Sensor Circuit

DTC P0365: Exhaust Camshaft Position (CMP) Sensor Circuit
DTC P0341: Intake Camshaft Position (CMP) Sensor Performance

DTC P0366: Exhaust Camshaft Position (CMP) Sensor Performance
Camshaft Position (CMP) Actuator System
The camshaft position (CMP) actuator system is an electro-hydraulic operated device used for a variety of engine performance and operational enhancements. These enhancements include lower emission output through exhaust gas dilution of the intake charge in the combustion chamber, a broader engine torque range, and improved fuel economy. The CMP actuator system accomplishes this by changing the angle or timing of the camshaft relative to the crankshaft position. The CMP actuator simply allows earlier or later intake and exhaust valve opening during the four stroke engine cycle. The CMP actuator cannot vary the duration of valve opening, or the valve lift.
During engine OFF, engine idling conditions, and engine shutdown, the camshaft actuator is held in the Park position. Internal to the CMP actuator assembly is a return spring and a locking pin. During non-phasing modes of the camshaft, the return spring rotates the camshaft back to the Park position, and the locking pin retains the CMP actuator sprocket to the camshaft


It may

Chain

Print

REMOVAL & INSTALLATION

4.3L, 5.0L, 5.7L and 7.4L Engines
See Figures 1, 2, 3, 4, 5 and 6

1. Remove the timing cover. This will allow access to the timing chain.
2. Crank the engine until the timing marks on both sprockets are nearest each other and in line between the shaft centers.

Fig. Fig. 1: Crank the engine until the timing marks on both sprockets are in line

1. On 1996-98 vehicles remove the crankshaft position sensor reluctor ring, if equipped. On 7.4L engines tool J-41371 or its equivalent puller must be used to remove the reluctor ring.
2. Take out the bolts that hold the camshaft gear to the camshaft. This gear is a light press fit on the camshaft and will come off easily. It is located by a dowel. The chain comes off with the camshaft gear.

Fig. Fig. 2: Remove the camshaft gear retaining bolts

Fig. Fig. 3: Remove the camshaft gear and timing chain
A gear puller will be required to remove the crankshaft gear.
To install:

1. Without disturbing the position of the engine, mount the new crankshaft gear on the shaft, and mount the chain over the camshaft gear. Arrange the camshaft gear in such a way that the timing marks will line up between the shaft centers and the camshaft locating dowel will enter the dowel hole in the cam sprocket.
2. Place the cam sprocket, with its chain mounted over it, in position on the front of the truck and pull up with the three bolts that hold it to the camshaft.
3. After the gears are in place, turn the engine two full revolutions to make certain that the timing marks are in correct alignment between the shaft centers. Tighten the camshaft sprocket bolts (and nut on the 4.3L) to 21 ft. lbs. (28 Nm) on 1988-95 models. On 1996-98 models, tighten the bolts to 18 ft. Lbs. (25 Nm). On the 7.4L, tighten them to 20 ft. lbs. (26 Nm) on 1988-95 models. On 1996-98 models, tighten the bolts to 25 ft. Lbs. (34 Nm).

When installing the crankshaft position sensor you must use install a new oil ring seal onto the sensor.

1. Install the crankshaft position sensor reluctor ring (if equipped), onto the crankshaft until it is firmly seated against the crankshaft sprocket. On 1996-98 7.4L vehicles replace the reluctor ring with a new component.
2. Install the front cover, torsional damper, water pump and the radiator.

Fig. Fig. 4: A gear puller will be required to remove the crankshaft gear

Fig. Fig. 5: Timing mark alignment-4.3L, 5.0L, 5.7L and 7.4L engines

Camshaft position sensor gives the position of cam related to the engine crankshaft which is useful for the fuel supply; ignition, injection, valve opening and closing system. Magnetic type sensor is used on the timing cover over the camshaft gear. Camshaft position sensor is same as that of crank shaft speed sensor in terms of construction and working. (Source: http://www.theautopartsshop.com/carsystem/what-is-camshaft-position-sensor.html)

timing belt is off by a tooth or two. you probably didn\'t have to replace the coolant sensor; that code sets whenever the sensor is disconnected and the ignition is turned on; and it needs to be reset by disconnecting the battery or with a code reader. anyway, the crank/ cam sensors are out of sync. if you\'ve got the twin cam engine, they are a royal pain to get the belt to lay properly on the two cams.

camshaft sensor located above crankshaft pulley, the camshaft sensor mounted on the front timing cover above the crankshaft pulley.

In this case the solenoid needs to be replaced.The error code in this case is P1533.This code is many a times noticed on Mercedes Benz.
Click this link to go through the replacement procedure of adjustable solenoid:-----http://technoanswers.blogspot.in/2012/02/how-to-replace-adjustable-camshaft.html
-----------Also i recommend you to go through this additional help links for more help:-----Crankshaft and camshafts timing marks?http://technoanswers.blogspot.in/2012/02/crankshaft-and-camshafts-timing-marks.html
dual over cam timing mark details?http://technoanswers.blogspot.in/2012/02/saturn-vue-30-dual-over-cam-timing-mark.htmlHow to Inspect Camshaft?http://repairhelpcenter.blogspot.in/2012/02/how-to-inspect-camshaft.html
camshaft Timing specifications?http://technoanswers.blogspot.in/2012/02/ford-mondeo-st220-camshaft-timing.html
Camshaft, Bearings & Lifters Replacing ?http://howtobyme.blogspot.com/2011/12/camshaft-bearings-lifters-replacing-on.htmlCrankshaft Damper Replacement?http://schematicsdiagram.blogspot.com/2011/12/crankshaft-damper-replacement-on-honda.htmlCamshaft Position (CMP) Sensor replacing?http://schematicsdiagram.blogspot.com/2011/12/gmc-camshaft-position-cmp-sensor.html
Crankshaft Front Seal?http://schematicsdiagram.blogspot.com/2011/12/crankshaft-front-seal.html
How test cam shaft? Testing Car Camshaft?http://repairhelpcenter.blogspot.in/2012/02/how-test-cam-shafttesting-car-camshaft.html
Problem with cam synchronizer?http://technoanswers.blogspot.in/2012/01/problem-with-cam-synchronizer-on-1996.html
How to service Cam Shaft? Camshaft servicing?http://repairhelpcenter.blogspot.in/2012/02/how-to-service-cam-shaft-camshaft.html
How to replace Camshaft? Replacing Vehicles CamShaft Assembly?http://repairhelpcenter.blogspot.in/2012/02/how-to-replace-camshaft-replacing.html--------This will help.Thanks.

For camshaft timing spec,click the link below :----Ford Mondeo ST220 camshaft Timing specifications? http://technoanswers.blogspot.in/2012/02/ford-mondeo-st220-camshaft-timing.html
-------This will help.
Also check this related help links:---

How test cam shaft? Testing Car Camshaft? http://repairhelpcenter.blogspot.in/2012/02/how-test-cam-shafttesting-car-camshaft.html
----------How to Inspect Camshaft? http://repairhelpcenter.blogspot.in/2012/02/how-to-inspect-camshaft.html
------------Crankshaft and camshafts timing marks? http://technoanswers.blogspot.in/2012/02/crankshaft-and-camshafts-timing-marks.html
----------Camshaft, Bearings & Lifters Replacing ? http://howtobyme.blogspot.com/2011/12/camshaft-bearings-lifters-replacing-on.html
---------Camshaft Position (CMP) Sensor replacing? http://schematicsdiagram.blogspot.com/2011/12/gmc-camshaft-position-cmp-sensor.html
------------How to replace Camshaft? Replacing Vehicles Cam Shaft Assembly? http://repairhelpcenter.blogspot.in/2012/02/how-to-replace-camshaft-replacing.html
---------This will help too.Thanks.

Generic OBD II Diagnostic Trouble Codes

DTC CODES P0300 to P0399

P0300....Random/Multiple Cylinder Misfire Detected

P0301....Cylinder 1 Misfire Detected

P0302....Cylinder 2 Misfire Detected

P0303....Cylinder 3 Misfire Detected

P0304....Cylinder 4 Misfire Detected

P0305....Cylinder 5 Misfire Detected

P0306....Cylinder 6 Misfire Detected

P0307....Cylinder 7 Misfire Detected

P0308....Cylinder 8 Misfire Detected

P0309....Cylinder 9 Misfire Detected

P0310....Cylinder 10....Misfire Detected

P0311....Cylinder 11 Misfire Detected

P0312....Cylinder 12 Misfire Detected

P0313....Misfire Detected with Low Fuel

P0314....Single Cylinder Misfire (Cylinder not Specified)

P0320....Ignition/Distributor Engine Speed Input Circuit

P0321....Ignition/Distributor Engine Speed Input Circuit Range/Performance

P0322....Ignition/Distributor Engine Speed Input Circuit No Signal

P0323....Ignition/Distributor Engine Speed Input Circuit Intermittent

P0324....Knock Control System Error

P0325....Knock Sensor 1 Circuit (Bank 1 or Single Sensor)

P0326....Knock Sensor 1 Circuit Range/Performance (Bank 1 or Single Sensor)

P0327....Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor)

P0328....Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)

P0329....Knock Sensor 1 Circuit Input Intermittent (Bank 1 or Single Sensor)

P0330....Knock Sensor 2 Circuit (Bank 2)

P0331....Knock Sensor 2 Circuit Range/Performance (Bank 2)

P0332....Knock Sensor 2 Circuit Low Input (Bank 2)

P0333....Knock Sensor 2 Circuit High Input (Bank 2)

P0334....Knock Sensor 2 Circuit Input Intermittent (Bank 2)

P0335....Crankshaft Position Sensor A Circuit

P0336....Crankshaft Position Sensor A Circuit Range/Performance

P0337....Crankshaft Position Sensor A Circuit Low Input

P0338....Crankshaft Position Sensor A Circuit High Input

P0339....Crankshaft Position Sensor A Circuit Intermittent

P0340....Camshaft Position Sensor 'A' Circuit (Bank 1 or Single Sensor)

P0341 Camshaft Position Sensor 'A' Circuit Range/Performance (Bank 1 or Single Sensor)

P0342....Camshaft Position Sensor 'A' Circuit Low Input (Bank 1 or Single Sensor)

P0343....Camshaft Position Sensor 'A' Circuit High Input (Bank 1 or Single Sensor)

P0344....Camshaft Position Sensor 'A' Circuit Intermittent (Bank 1 or Single Sensor)

P0345....Camshaft Position Sensor 'A' Circuit (Bank 2)

P0346....Camshaft Position Sensor 'A' Circuit Range/Performance (Bank 2)

P0347....Camshaft Position Sensor 'A' Circuit Low Input (Bank 2)

P0348....Camshaft Position Sensor 'A' Circuit High Input (Bank 2)

P0349....Camshaft Position Sensor 'A' Circuit Intermittent (Bank 2)

P0350....Ignition Coil Primary/Secondary Circuit

V6 ENGINE CAMSHAFT SENSOR IS IN THE DISTRIBUTOR. THE V8 ENGINE CAMSHAFT SENSOR LOCATED ABOVE THE CRANKSHAFT PULLEY.

the input to the sensor must also be checked. this link provides some diagnostic procedures. diagnosis for camshaft and crankshaft sensors are similar, as stated in the article.

http://www.aa1car.com/library/crank_sensors.htm