Camshaft & Crankshaft Position Sensors (98 Tahoe 5.7 Gas)

[AKA Fingers]

Camshaft & Crankshaft Position Sensors (98 Tahoe 5.7 Gas). Does anybody know where these are located? If so please let me know how and where to find them. Does it take a special tool etc etc...

Thanks

Fingers

[Jeremy-WI]

Camshaft position sensor is located in the distributor cap. Crankshaft position sensor is located near the harmonic balancer on the underside of the motor. What's the problem? If its a P1345 code replacing sensors won't help

[amac209]

if you have a code P1345 it means the sensors aren't properly syncronized.
here's the recomended procedure

Bring cylinder number one piston to Top Dead Center (TDC) of compression
stroke.

Remove the distributor cap bolts
Remove the distributor cap.

Install a NEW distributor gasket onto the distributor.

Align the indent hole on the driven gear with the paint mark on the
distributor housing.
Ensure that the distributor rotor segment points to the cap hold area.

Align the slotted tang in the oil pump driveshaft with the distributor
driveshaft. Rotate the oil pump driveshaft with a screwdriver if
necessary.
Align the flat (1) in the distributor housing toward the front of the
engine.
Install the distributor and distributor clamp.

Once the distributor is fully seated, align the distributor rotor segment
with the number 8 pointer that is cast into the distributor base.
If the distributor rotor segment does not come within a few degrees of the
number 8 pointer, the gear mesh between the distributor and camshaft may
be
off a tooth or more. Repeat the procedure in order to achieve proper
alignment.
Install the distributor clamp bolt. Tighten the distributor clamp bolt to
25
N·m (18 lb ft).
Install the distributor cap onto the distributor.
Install the distributor cap bolts. Do not overtighten the
distributor cap bolts. Tighten the distributor cap bolts to 2.4 N·m (21 lb
in).
Install the ignition coil wire harness.


Good luck!!

[AKA Fingers]

Thanks for the info! I did not write down the error codes. I will get them tomorrow and post them on here. I believe it had several error codes though.

Thanks!

[AKA Fingers]

Three error codes were reported and they are as follows:

P0104 - Mass or Volume air flow circuit intermittent

P0102 - Mass or Volume air flow circuit low input

P0340 - Camshaft position sensor circuit malfunction

Not sure if I should replace all three sensors or just start with one at a time. I am looking for some knowledge if possible on these error codes.

Thanks,

Fingers