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Sugar in gas tank, I think and now the engine won’t start. What should I do?

my 01 yukon is misifiring and cutting out, we just had it at shop and they cleaned injectors ran good for a few days… used to start chuggin at 1/4 tank of gas now it started last night at over a half a tank of gas…. codes p0452 p0131 p0151 p0430 p0307 are coming up now and I am fed up of replacing things and it not being the problem.. any ideas would be greatly appreciated:) We have replaced plugs and wires already and we replaced a coil a bit back, my husband has checked a few things but the shop said that all levels were ok when it was in there but it was also running better then it is now…

I have a 2005 GMC Seirra with a blown fuel pump. A guy I know has a fuel pump he bought to put in his 1994 Seirra but never did is it compatable i.e. do they cross reference. I have a 4.3L V6 I dont know his engine size.

i have a gmc suburban and last night it was idled outside of a store for about 15 minutes it was running fine, no prior problems but after sitting it cut off and would not crank well about an hour later i turned it over and fired right up. Got it home and let it sit over night went out this morning fired right up again but after about five minutes of idling it cut off and wouldnt crank again i dunno what to do. has been about 8 hours now and still wont crank.

where do i find the air cindtioner ports on my 91 gmc jimmy?

have to prime the carb to get it started sometimes, and will run rough sometimes even after warmed up, got to be simple right??? Any ideas of what i need to check?

  the vehicle 2003 chevy S-10 P/U crewcab 4×4 4.3 liter V-6 automatic with a/c, I replaced the heatercore by removing & replacing the dashboard, went to start the truck & stalled imediately,then the security light came on steady ,tried to reset the security light with the remote and nothing,checked all electrical connections & still nothing.i’m mind boggled & could use some insight on this, i am just about broke and out of work please help. thankyou

Is a special tool needed to remove and replace the water pump?

I have a 1997 GMC Jimmy 4X4, my brakes are very hard to push and also makes a hissing noise, even then it doesn’t stop the car, also when you press the brakes all the gauges in the dash move, it also acts like its going to stall? what could be causing this and what can I do to fix it? Or what could be causing this?