Question about 1995 Chevrolet K1500
I have a 95 3/4 ton silverado v8 auto
it will start up cold and idle fine. as it gets towards operating temperature it starts running rough when you rev it it bogs. when it gets to operating temp check engine light comes on.
turn it off and let cool for a few seconds recrank it the light is off And it runs fine for a couple minutes. scanner brought up code 45 which im told is gas cap on wrong but its not that.
i almost think the cat converter is clogged is this plausible thinking
Hey try your egr valve faulty one causes a vac leak , same code as gas cap
Posted on Dec 22, 2008
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Jan 13, 2016 | 1996 Nissan Quest
Nov 23, 2014 | 1995 Chevrolet K1500
Here are the common cause of surges, stalls at stops, slow idle speed, erratic idle, it is in most cases the idle speed control air-bypass valve and/or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving
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