Engine Bogs 40mph
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Car: 92 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt 3.42 Posi
Engine Bogs 40mph
What would cause my engine rpms to bog out at 40-45 mph?..new sparks wires dist. cap, just rebuilt the TB...it has been doing this before all the new stuff.. I think its related to my smog failing, not throwing any codes... seems to get worse the more I drive it through the day.... when i mash the gas it wont bog.. Its not so bad when the car is cold
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Car: 1987 Trans AM
Engine: Twin Turbo 6.0 LS2
Transmission: T56
Re: Engine Bogs 40mph
Are you sure it isnt throwing any codes? or is the SES light out? Does it bog out at the same rpm if you put it in park/neutral? If it does, you're looking at an ignition issue. Otherwise, start suspecting fuel issues. Start with the basics, fuel pressure, fuel filter, fuel pressure regulator.
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Car: 92 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt 3.42 Posi
Re: Engine Bogs 40mph
the light works, it throws codes but I get em fixed, this hasnot thrown any...a few weeks ago it through a fuel pump relay code, but I think if it was the relay the car would not start
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Car: 92 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt 3.42 Posi
Re: Engine Bogs 40mph
revs fines in N/P... I can red line it smooth...it only happens at about 40-45...Im thinking now it might be tranny what ever gear it is maybe its stutterin to shift up?..MPH will go up but it putters out a few...when I mash on it it will pop up and accel.
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Car: 92 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt 3.42 Posi
Re: Engine Bogs 40mph
alright, not sure how its suppose to reve in 2nd, but when I punch it and let got it will go up to about 2,000 rpms and drop... when I hold the rev it kinda stuck at 2,000 an then with a little more the tires burnt out and rpms climed
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Car: 92 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt 3.42 Posi
Re: Engine Bogs 40mph
Could this be a symptom of a bad EGR valve?.. im thinking its something to do with my extreamly high fuel to air ratio
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Car: 1987 Trans AM
Engine: Twin Turbo 6.0 LS2
Transmission: T56
Re: Engine Bogs 40mph
It sure is starting to sound like it, breaking up in the partial throttle range. Replace the valve, see what happens. Could also be an issue with the TBI system, I however am not a TBI expert, so I cant even point you in the right direction with that.
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Car: 92 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt 3.42 Posi
Re: Engine Bogs 40mph
not sure if this is a reliable check but I unplugged it to see if any outher symptoms would occur and it ran the exact same, im ganna pull it tomorrow and try to clean it...its a 180 dollar part
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Car: 1987 Trans AM
Engine: Twin Turbo 6.0 LS2
Transmission: T56
Re: Engine Bogs 40mph
If the valves stuck close, unplugging it wont do anything Might have to clean/replace it. Run some sea foam through it while you're at it
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Car: 92 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt 3.42 Posi
Re: Engine Bogs 40mph
I hate emissions with a passion, I think 80% of these cars problems are due to emission b/s
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Car: 1991 z28
Engine: 305 tpi
Transmission: 700r Automatic
Re: Engine Bogs 40mph
i have the same issue with my 91 305 tpi automatic...throwin code for o2 sensor too rich...gonna rpelace them as well as clean throttle body and iac...it also stalls when im stopped in gear sometimes runs nearly perfect in neutral/park...i hope its not egr for me , gotta disassemble the intake to get to the damn thing but it could be the culprit has new,map,tps,fuel filter,vss(still doesnt give me a read on speedo???) and a few other things like oil/airfilter....PLEASE HELP??
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Car: 1988 Pontiac firebird
Engine: '93 LT1
Transmission: Built 700R4
Axle/Gears: 3.70 9 bolt
Re: Engine Bogs 40mph
my car sometimes shifts into overdrive at 40 mph. are you sure this isn't happening? put it in 3rd and drive around like that and see what happens.
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