August 4th, 2015, 6:27 PM
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5.7L Engine Miss. Very Frustrated! Tried Everything.
January 24th, 2015, 10:04 PM
#71
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replace the fuel injection unit with MPFI from later model engine. Summit Racing sells one from Chevrolet Performance for less than 400.00 and it installs in about 6 hours. The central sequential fuel injection system used on pre 99 vortec engines is notorious for trouble
May 11th, 2015, 8:54 PM
#73
Temp sending unit.....fixed my hard starting, misses, smoke, etc. Worth a try. I just unplugged the connector and applied contact grease to mine and it's like new. Did the same thing for my wipers that went "haywire". Corrosion seems to be the culprit.
December 30th, 2016, 4:08 PM
#74
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hey guys im not sure if my problem is the same
I had to replace my intake manifold and along the way we had to set the distributer and do the timing
now when im driving I get a random miss. its pretty jarring
its mostly at low rpms. it doesn't send any codes.
it starts fine, drive fine, idles fine
the miss only happens randomly
any clues
I had to replace my intake manifold and along the way we had to set the distributer and do the timing
now when im driving I get a random miss. its pretty jarring
its mostly at low rpms. it doesn't send any codes.
it starts fine, drive fine, idles fine
the miss only happens randomly
any clues
Last edited by JimmyTKg; December 30th, 2016 at 4:15 PM. Reason: Add more information
December 4th, 2019, 9:32 AM
#77
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Hello,I am a new member.I have a '94 4x4 silverado 1500.I am having a problem with a miss in the engine.I had a mechanic that works for a GM dealership to look at it.He scanned it and his scanner found no problems with it.It idles fine but when you give it a little throttle,it starts to miss and tries to stall.Its like it loses ignition totally or fuel flow.He unhooked the hose from the egr solenoid and it would run smoothly when giving it throttle but would still cut out and miss while driving it.I replaced the solenoid and that did not fix the problem.He also noticed the fuel pressure regulator was leaking so i replaced that too but it did not fix the problem.The fuel pump,fuel filter,and distributor were all replaced about 15 months ago as well as the coil and it ran fine until about 2 months ago then it started having the miss gradually.I have tried different plug wires ,new rotor and dist. cap and new plugs and nothing seems to help.The engine starts getting the miss after it warms up when sitting still and misses at all times when driving.The engine is a 5.7L with TBI.Any help with this would be greatly appreciated as i have tried everything i can think of.
Thank You,
John
Thank You,
John
December 4th, 2019, 9:34 AM
#78
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I replaced everything on mine and was tearing into it to replace gaskets when I noticed a fire in my upper. Intake cooked my fuel spider hoses, let me know if it works for you, my truck runs stronger than ever now
December 11th, 2019, 10:42 PM
#79
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Hello,I am a new member.I have a '94 4x4 silverado 1500.I am having a problem with a miss in the engine.I had a mechanic that works for a GM dealership to look at it.He scanned it and his scanner found no problems with it.It idles fine but when you give it a little throttle,it starts to miss and tries to stall.Its like it loses ignition totally or fuel flow.He unhooked the hose from the egr solenoid and it would run smoothly when giving it throttle but would still cut out and miss while driving it.I replaced the solenoid and that did not fix the problem.He also noticed the fuel pressure regulator was leaking so i replaced that too but it did not fix the problem.The fuel pump,fuel filter,and distributor were all replaced about 15 months ago as well as the coil and it ran fine until about 2 months ago then it started having the miss gradually.I have tried different plug wires ,new rotor and dist. cap and new plugs and nothing seems to help.The engine starts getting the miss after it warms up when sitting still and misses at all times when driving.The engine is a 5.7L with TBI.Any help with this would be greatly appreciated as i have tried everything i can think of.
Thank You,
John
Thank You,
John
December 16th, 2019, 3:36 PM
#80
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1995 5.7 tbi Chevy Tahoe 2wd 245k miles and Counting Same Issue
After doing cap and rotor replacement same issue as original post tried everything was real careful and double checked my work had to be something I did during job...it was i mixed up plug wires from #1 and #5 it started ran just missed and was rough discovered my error fixed wiring and was purring like a kitten TRY THE LIL THINGS GUYS TRIPLE CHECK YOU MIGHT HAVE OVERLOOKED A LIL DETAIL. THANKS
