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forgive me if a post like this has been up before i couldnt find anything... anyway i have a 95 160hp engine and having some problems... i idles pretty decent with very little smoke (white) but when you give it throttle it misses badly smokes white/ grey and if you dont ease off the throttle it will die any suggestions in what might be causing this would help greatly thank you brian
mine would idle fine but if it was really cold an tried to take off it would blow a little smoke. i would just let it warm up for a while befor i took off....if yours is doing it hot or cold then what dave said white/grey smoke usually means raw fuel an it not gettin burned...
__________________ 2005 3500 qcsb white sport laramie 4x4-ranchand front bumper-flo-pro Duals-285 Nitto's-ARP's-Rancho-Nfab-Amsoil-Interstate MTP 2005 2500 GMC ccsb LLY 4x4
anytime you get white smoke, its a fueling issue, either the fuel pressure is too low, like he said a compression problem, or even low voltage to your lift pump causing low fuel pressure, you get the raw smell from the exhaust, because when the injectors are bad and leak, the fuel pretty much flushes out the exhaust before it can burn, cold fuel causes the white smoke, thus when the fuel burns in the exhaust it makes a raw fuel smell, crank the truck, and smell the exhaust...
in other words white smoke usually occurs when there is not enough heat to burn the fuel. The unburned fuel particles go out the tailpipe and typically produce a rich fuel smell. It's not unusual to see white smoke in the exhaust during cold weather until the engine warms up.
If white smoke is still visible after the engine has warmed up, the engine may have one or more bad injectors, retarded injection timing or a worn injection pump. Low compression can also be a source of white smoke. Air in the fuel system can also cause white smoke.
2011 3500, stock, 2003 QCSB 4X4 5.9 6spd, Smarty, Valair, K&N, ARP, Topgun, Autometer, 5" Stacks, Smoked Recons, KMC wheels, Cooper 35X12.50's, With enough get up and go to piss off your granny! Blacked Out And Engineered By Southern Smoke, And Dark Side Diesel!
start the truck and let it idle, get in the engine bay and crack an injector line. You should get fuel spraying out. If you do the first and it doesnt change anything keep on going, if you crack one and it starts running smoother it would indicate a dead injector.
My did the same exact thing and it was a bad injector.
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