1996 GMC Sonoma acts like the carbuater is clogged

There is a known problem with the ignition starter switch in these years and this model. I would replace it.

You will get your solution and all info on service info, repair info, parts info, wiring/electrical/fuse diagrams, error/fault codes, torque specs, PCV,

owner's/service/repair/parts/maintenance manuals etc everything
this website www.reliable-store.com
it's a very good website for vehicle problems even as old as 1991 ford..

If the check engine light is on I would have that checked first. The trouble codes in the computer will help point you in the right direction for troubleshooting.
You could have a sticking fuel injector, or an ignition problem, or both.

ur car is 15yrs and a trans that old can hav a number of issues--internal parts may be varnished from heat or valve body cud be clogged also planetary gearset cud be worn-------its a complicated system--have a pressure chec done goin the the gears and scan car for codes--if mechanic sez u need rebuild-get other opinions

Any blowen fuses ?
acessory power feed not reconnected?

did you check your starter? solenoid fuse relay? if the engine dont turn over first start with starter thast the one responsible for the crank shaft to turn.

could be alot of different things. try disconnecting the fuel line at the motor to see if you have fuel when the key is turned on. (put open end of line in a bottle preferrably clear to inspect for debris or water) If not replace fuel filter. could be a clogged catalytic converter, could be clogged injectors (if when you remove the fuel line at the motor there is fuel coming out when ignition is turned on) could be air filter is clogged. You can get rid of most of these without disconnecting anything by getting a can of choke and carb cleaner. Use it like you would starter fluid. (dont use starter fluid as it may lock up your motor) disconnect air filter and spray about a 2 second full spray into the air filter hose. have someone try to start the car. If it starts then you know its a fuel delivery problem and narrows it down for you.

It sounds like the fuel pump. You may still be able to hear the pump, but it needs to produce a lot of pressure. If it is weak it won't do the job.

The 99 GMC, when it acts up, check whether it has fuel and/or spark. It could be related to fuel pressure, available electrical power, ignition component/s.

have you checked the fuel pump relay? usually that is the problem seeing is that it fires when you use the starting fluid.