Need to replace a ignition control module on a 97 gmc yukon V8 5.7 eng don't know how to get the old one off do I need a particular tool?

1995 96 97 98 99 GM Truck Ignition Lock Cylinder Removal Chevy GMC

I don't know about your particular application, but I do know that manufacturers are not using heavy enough wire for many things on a vehicle. So if the coils are bigger (higher output voltage) then they probably would draw more power and more load on control modules. I don't know any reason why stock would not be enough spark, these are a lot more powerful already than ignition systems were 40+ years ago. So in my opinion, no I wouldn't do it.

have the control module in the distributor checked at auto zone i had the same problem with my 94

2 wheel drive or 4 X 4 ? Automatic or manual climate control
Do you know what DTC'S - diagnostic trouble code's are ?
DTC B1375
The ignition 3 voltage circuit is a discrete input to the HVAC control module. The HVAC control modules uses the input to determine that the ignition switch is in the RUN position. When the ignition switch is in the RUN position, ignition voltage is applied to the input.
Rather then guessing as to what the problem , not being able to diagnose properly , your best bet mite be to have a qualified repair shop check it out . Would need to hook up a professional or factory scan tool to check code's ,see if the climate control module will communicate with the tool .
HVAC Control Module
The HVAC control module is a class 2 device that interfaces between the operator and the HVAC system to maintain air temperature and distribution settings. The battery positive voltage circuit provides power that the control module uses for keep alive memory (KAM). If the battery positive voltage circuit loses power, all HVAC DTCs and settings will be erased from KAM. The body control module (BCM), which is the vehicle mode master, provides a device on signal.

This is the relearn process if you replace a key and don`t have a scan tool.You have to get the codes from the Theft Deterrent module to see what could be causing the problem.If your key is worn out it could cause this problem.Try using a different key if you have one.The dealership parts department has a tool to check the keys.Usually done at no charge.Only takes seconds to do.Could also be a bad ignition cylinder.That`s why you need the codes.Other wise you are just spending money and buying parts that you don`t need.Let me know what codes you get and I`ll be glad to help you out.Good luck.

it control warning
door locks
lights
alarm

It is located under the cup holder in the middle console.

distributor has to be installed correctly and then timing set with scan tool

ignition coil, u have to slide colites in to remove fuel filter and yes they make a special tool for fuel filters, check for spark also bad crank sensor will not allow spark, pull plug rest against exhaust manifoldconnect wire and look for spark as some cranks it over, it's frustrating i know but i am good at s-10's and u got same beast been thourgh what u are doing patience and email me if needed [email protected]

is the spark blue?xheck all the connectors to the mfi iac and ignition module,and the distributor