95TahoePA
New Member
Hows it going?
I have a 95 Tahoe (5.7L) and it recently just started running really weird. Let me start from the beginning: She ran fine since day one of me buying her back in Feb of 2011. Alittle hesitation when first leaving a light, but actually hauled @&!. 2 weeks ago driving home from work I had to speed up a bit to merge with traffic and she started to "pop" real bad like she was missing on at least 4 cylinders. Let off the gas and she was fine when I eased into the throttle. Move any harder then that and she "popped". Ok fine, Plugs, wires, cap & rotor needed to be done so I did them. Now, she has NO power from idle to 2500rpm in all gears... and still she is a bit sluggish.. almost like she is being held back or hauling a airsteam trailer behind her. So, naturally, I check the firing order (yes, I know its 18436572) and thats right. Cleaned the EGR Valve (in working order) cleaned the IAC motor (only very minimal carbon on it, still was shiny). Bring the motor to TOP dead center, re-time it as best as I can without a timing light, still runs the same. Replace the fuel filter (gas in old one ran out clean). Even checked the old one with some gas from a gas can to see if it may have poor flow, but it flowed fine... Still replaced it. Checked all lines and injectors for clogs and they were fine. Found a vacuum leak at the throttle body gasket to the intake (TBI stamped on the housing). Replace the gasket and still runs like she's hauling something. No smoke of any color out the tail pipe. Oil is fine & replaced not to long ago (within 5k and 6 months) Trans fluid is fine and not burnt looking or smelling. Deferential fluids are fine. Im at a complete loss!
Any suggestions would be appreciated!
Thanks,
Josh
I have a 95 Tahoe (5.7L) and it recently just started running really weird. Let me start from the beginning: She ran fine since day one of me buying her back in Feb of 2011. Alittle hesitation when first leaving a light, but actually hauled @&!. 2 weeks ago driving home from work I had to speed up a bit to merge with traffic and she started to "pop" real bad like she was missing on at least 4 cylinders. Let off the gas and she was fine when I eased into the throttle. Move any harder then that and she "popped". Ok fine, Plugs, wires, cap & rotor needed to be done so I did them. Now, she has NO power from idle to 2500rpm in all gears... and still she is a bit sluggish.. almost like she is being held back or hauling a airsteam trailer behind her. So, naturally, I check the firing order (yes, I know its 18436572) and thats right. Cleaned the EGR Valve (in working order) cleaned the IAC motor (only very minimal carbon on it, still was shiny). Bring the motor to TOP dead center, re-time it as best as I can without a timing light, still runs the same. Replace the fuel filter (gas in old one ran out clean). Even checked the old one with some gas from a gas can to see if it may have poor flow, but it flowed fine... Still replaced it. Checked all lines and injectors for clogs and they were fine. Found a vacuum leak at the throttle body gasket to the intake (TBI stamped on the housing). Replace the gasket and still runs like she's hauling something. No smoke of any color out the tail pipe. Oil is fine & replaced not to long ago (within 5k and 6 months) Trans fluid is fine and not burnt looking or smelling. Deferential fluids are fine. Im at a complete loss!
Any suggestions would be appreciated!
Thanks,
Josh
