Questions & Answers for: GMC amp smoking

blows black smoke. a1989 gmc s15 with 2.5l engine When was last tune up? Plugs, wires, ALL filters & fluids??? Especially fuel filter. I'd start there and run a good fuel system cleaner through it

...have a '94 Sonoma 4.3L Vortec. Just bought it but runs rough. I changed plugs. The plug wires, cap & rotor button all have been replaced not too long ago. It also has the back side of muffler ...

flooring gas pedal, big black smoke coming from exhaust, we have changed the module, the coil, cap & rotor & wires, spark plugs are new, new gas pump and filter and relay, as well as a new map

...out, I am also burning oil fast! The job was not done well at all, you know that Stop using it & try & resolve at the place that did the sloppy job I have a feeling that won't go well

white smoke White Smoke ----is just two words Can you actually compose a sentence & some datails ? White smoke out the exhaust is either fuel or coolant White smoke usually means a blown head ...

...BUYING PARTS COULD IT BE EVAP No idea, why you or anyone would buy any parts You have to diagnose & find the problems with vehicles, & then only after you know how to component test, do you ...

smoking hot! What causes an exhaust to get red hot when you try to rev the motor up? Just changed the fuel regulator....had a gas surging problem. Valve Timing,Ignition Timing,Rich Fuel Condition Hope

fuel pressure regulator misfire cyl. 5&7; compression, leak down, spark ok. fuel pressure drops to 0 after 2 sec. Fuel Pump may be bad & not hold pressure Look up how to test a pressure ...

...for vacuum leaks Look at fuel trim with professional scan software How can you do all that work & not check fuel pressure, that was the very reason you changed the regulator & poppets #6 ...

...I would like to see a diagram of the Envoy's fuel sensor and fuel pump. Google the question & look on the internet I bet your going to drop the fuel tank, if you have issue with either ...