i have a 1994 gmc sierra and only when going up hill it starts to sound like a spark knock then it will spit and sputter almost like it is running out of gas, any ideas is appreciated

i have a 1994 gmc sierra and only when going up hill it starts to sound like a spark knock then it will spit and sputter almost like it is running out of gas, any ideas is appreciated 2 Answers

2007 GMC Sierra 1500 will start then shut off after a second or 2. It also seems like when I hit the gas sometimes it is a little bit of a delayed reaction or jerky. Spark plug? Injector? Fuel pump? 3 Answers

2007 GMC Sierra 1500 will start then shut off after a second or 2. It also seems like when I hit the gas sometimes it is a little bit of a delayed reaction or jerky. Spark plug? Injector? Fuel pump?

I have a 1994 gmc Sierra 1500 5.7L. It is running like crap. It is rough at idle and stall when you put it in gear. I've rebuild the throttle body and it still won't stay running. 3 Answers

My boyfriend thinks its the o2 sensor I honestly thinks its the spark plugs and cap and rotor and the wires. Need help

I have a 1994 gmc z71 with the 5.7 engine. When the truck gets to normal operating temp it loads up and stalls at low rpm's. The only way it will restart is holding the gas pedal to the floor. 2 Answers

I have replaced both injectors, fuel filter and complete tune up including the coil and the distributor pick up. Any help would be great.

I have a 2015 GMC Sierra with only 4000 miles on it and it makes a rattling noise when it starts then when it hits 210 on temperature it stops the noise what could be the issue 15 Answers

It only does it in the mornings and it sounds like something is either loose or just vibrating against other metal. I have no problems with the truck or from what i can tell it just makes that annoy...