July 21, 2012I have a 1995 K1500 with TBI 350 and auto trans with 129k miles, on a recent trip I noticed that while at a stop light the truck seemed to lope very heavily at idle, about 500RPM, without much fluctuation. After getting up to speed 65MPH, the truck started to chug and I noticed a huge loss in power. Felt almost like when the MAF sensor went out on my 97, except stayed constant. I changed plugs, wires, cap and rotor and still have the same problem where maintaining speed is a huge issue. If I floor the pedal the trans will downshift and slowly be able to get back up to speed but very hesistant. Not sure if it`s related, but recently installed an overhead warning/flasher and after 4 months of use, with the cruise control I turn on the flasher and after 30 seconds it shuts off and also kills the CC. Any ideas on what could be causing this?
Forums : Silverado (c/k) (1988 - 1998) : `95 Rough Idle, Highway Speed Chugging (2454 Views)
Subscribers : real4x4rust
July 22, 2012Did you check the fuel filter/fuel pressure?
1995 Chevrolet K2500 ~ RIP | 2005 GMC Sierra 2500HD Duramax
July 25, 2012Yep,changed the fuel filter and checked the pressure also changed the coolant temp sensor, fixed 2 electrical grounds, and last night changed the idle air control valve (IAC). After changing the IAC everything improved to the way it should be/used to be, however, now it sounds like the drivers side engine bank has something like a lifter ticking or a valve sticking. The problem I have with figuring out what is causing this is it doesn`t do it all the time, so I don`t know if I should make a new posting or just say hell with it and put a for sale sign in the window.