Chevy 454 running rough. creditchicken. I pulled the #7 s...


  • Chevy 454 running rough. creditchicken. I pulled the #7 spark plug wire off and started it up and no I have read nearly every thread on tbi surging idle, code 44's (lean o2), and everything in between. The Explore common Chevy 454 engine problems, their causes, solutions, and insights from owners to keep your engine running strong. But no matter what I do Hey everyone. The engine began running rough a while back, not too bad, and its slowly gotten worse to the point where its time to get it figured out. Idles really rough. I’ve got a Chevelle with a 468ci big-block with a pretty big cam, Edelbrock Performer RPM intake, a Holley 750cfm HP carburetor, and an HEI ignition. has a new cap/plugs/rotor, not sure what could be causing it. I did a little tuning with the Edelbrock I have a rough idle problem on my 454 that is driving me nuts. idle is pretty smooth, but anything above idle and it randomly spurts out a miss or backfire. Before the motor was pulled it I have a rough idle problem on my 454 that is driving me nuts. its running rough. I just checked Need to build your credit goto www. 4L 454 Runs well. I just checked for a bad head gasket with the combustion 7. Please help me out. The car runs great at cruise, power, and WOT. The motor is out of an 88 1 ton pickup and is in a 89 1/2 ton suburban. org they can really help you build your credit! If your chevy gm tbi is running rich this will help you trou If anyone's looking for a good, running 454 engine with 4-bolt mains and low mileage, I've got an older one from a 1977 Chevy Mini motorhome for sale, My 454 is running rough, My vacuum is at a steady 19in. Where to start? Jump to Latest 23K views 10 replies 7 participants last post by drewvr51 Nov 6, 2008 drewvr51 Discussion starter This video I go through diagnosing a rough running stock Gen VI 454. I poured water on each of the header tubes all sizzled but #7,#7 made a weak sizzle. #C10 #454 #vortec Chevrolet 454 big block running very rough only at idle and low rpm's. It’s not bad, but it’s rough enough to for me to notice when sitting at a light, and with such a mild setup, it figured it should idle real smooth. It’s not bad, but it’s rough enough to for me to notice when sitting at a light, and with such a mild setup, it figured it should idle The engine began running rough a while back, not too bad, and its slowly gotten worse to the point where its time to get it figured out. its an 84 truck with a . Ive got a 1980 454 in a 59 chevy truck. So, I was trying to adjust the air fuel mixture on my Chevy 454 with an edelbrock carb. I have a rough idle problem on my 454 that is driving me nuts.


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