I need to know where the fuel injector is located on my 97 tahoe 5.7

Check your coil pack. Sounds like one or two need replacing.

If compression test is good is either no spark, bad coil or wire, or no fuel, bad fuel injector. Need to clarify which is not functioning properly.

Crank sensor has to be bad,or the ignition module.Remove the ignition module and have it checked at the parts store.If it checks bad,replace it,if it checks good replace the cranksensor.The cam sensor,cranksesor,and the control module control injector pulse,and coil spark.I would point more to the ignition module.But I have known the crankshaft sensor to do this also.I hope this was helpful,if so,let us know,thanks,and good luck.

the number 6 cylinder is located (if you are looking at it from the front of the car) it is on the left side third cylinder back from the front. you probally have a bad injector that is just dripping fuel into that cylinder.

The term "spider injectors" stems from the Vortec Series Engine's fuel injection system. Unlike fuel injectors that are installed individually commonly used in engines, this one piece molded plastic web body which all 6 or 8 injectors are permantly attached(94-96), when looked at resembles a look of a spider. est. cost $350-$450. In 97 on up, GM changed from the fixed injector (If one injector goes bad you need to change the whole or all injectors) to being able to individually change each injector. est cost $50-$150 ea.

Number 5 cylinder may have clogged fuel injector. O2 sensor can be replaced on exhaust pipe. EGR valve can also be replaced. good luck

Are you sure it's the fuel pump your hearing and not the self leveling shock's in the back of the tahoe if you have that option. No fuel should be pumping in to your cyls because of the injector's. Unless there bad. Good luck

To Install:

1. Lubricate the NEW fuel injector O-rings with clean engine oil.
2. Install the O-rings on the fuel injector.
3. Install a NEW retainer clip on the fuel injector.
4. Install the fuel injector in the injector socket with the electrical connector facing outward. The retainer clip locks onto a flange at the fuel rail injector socket.
5. Install the fuel rail.

NOTE: Use care in removing the fuel injectors in order to prevent damage to the electrical connector pins on the injector and to prevent damage to the nozzle. Service the fuel injector as a complete assembly only. The fuel injector is an electrical component. DO NOT immerse the fuel injector in any type of cleaner.

This starting issue sounds like either the ignition timing is way off, or the cam timing is, the whinning sounds like the timing chain may have been replaced with a non silent type chain (plastic cam gear teeth), maybe the onwer got this wrong when he installed it and the cam timing is off.