Why's it running so rough??
Thread Starter
2011 Norwood Gathering
ThirdGen Firebird Rep
ThirdGen Firebird Rep
Joined: Jun 2000
Posts: 3,435
Likes: 4
From: Sarasota FL
Car: 99 WS6 / 00 SS / 11 CTS-V / 13 300
Engine: LS1 / LS1 / LSA / 5.7 Hemi
Transmission: 4L60E / T-56 / 6L80E / W5A80
Axle/Gears: 3.23 / 3.42 Auburn / 3.23 / 2.62
Why's it running so rough??
I've put up with this problem way too long, and I need some help!!
When I start my car in the morning, it fires right up, and idles decent (for a 2.8 anyways
) When I plop it in drive and give it very light throttle, it bogs down, doesn't wanna move for a second or two, then fires right off and is normal all day! Any ideas why it does this? It never stalls...just bogs every time.
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Jason E
'89 Camaro RS 2.8
Medium Grey Metallic/700R4, T-tops
Hypertech chip, 2 K&N filters/Modded air box
Eclipse CD, Eclipse 100x4 amp, Polk 4x6 fronts, Boston RX 6x9 rears
Alpine Alarm w/ Keyless entry
IROC tailights
When I start my car in the morning, it fires right up, and idles decent (for a 2.8 anyways
) When I plop it in drive and give it very light throttle, it bogs down, doesn't wanna move for a second or two, then fires right off and is normal all day! Any ideas why it does this? It never stalls...just bogs every time.------------------
Jason E
'89 Camaro RS 2.8
Medium Grey Metallic/700R4, T-tops
Hypertech chip, 2 K&N filters/Modded air box
Eclipse CD, Eclipse 100x4 amp, Polk 4x6 fronts, Boston RX 6x9 rears
Alpine Alarm w/ Keyless entry
IROC tailights
Supreme Member
Joined: Mar 2000
Posts: 1,777
Likes: 0
From: First one out of liberty city, burn it to the ground
i think its normal...TomP responded before when i asked about it and he said to let the fuel pump go for a sec before u start the car (turn to on let the pump go then start it) it helped a bit
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89 RS
305 TPI...
Previous:
2.8 s/c'd firebird
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89 RS
305 TPI...
Previous:
2.8 s/c'd firebird
Supreme Member
Joined: Mar 2000
Posts: 2,028
Likes: 0
From: St. Louis, MO
Car: 85' Firebird (Project), 92' RS
Engine: 2.8L, LS1
Transmission: 700R4, 4L60E
Axle/Gears: 3.42 Open , 10 Bolt (ukn)
I agree with Graeme,
when i start my bird, i turn the engine to on first, you'll hear the fuel pump push gas to the engine, and after you here that stop, fire it up. Most engines will have a quick hesitation when first started anyway, think about it, it's their first time starting in hours.
when i start my bird, i turn the engine to on first, you'll hear the fuel pump push gas to the engine, and after you here that stop, fire it up. Most engines will have a quick hesitation when first started anyway, think about it, it's their first time starting in hours.
Thread Starter
2011 Norwood Gathering
ThirdGen Firebird Rep
ThirdGen Firebird Rep
Joined: Jun 2000
Posts: 3,435
Likes: 4
From: Sarasota FL
Car: 99 WS6 / 00 SS / 11 CTS-V / 13 300
Engine: LS1 / LS1 / LSA / 5.7 Hemi
Transmission: 4L60E / T-56 / 6L80E / W5A80
Axle/Gears: 3.23 / 3.42 Auburn / 3.23 / 2.62
I totally agree that it makes sense to let the pump run...but this is even after I let the car idle for up to 30 seconds sometimes. Shouldn't that give the fuel pump enough time to work properly?
My 2.8 does the same thing. When it's cold it'll start but if you don't gas it it'll die after about 3-5 secs. I have to restart it about 3 times before it'll idle. Mine has the hesitation when you put it in drive too. I'm gonna try the fuel pump thing w/ mine. I heard the 2.8's are bad for cold start hesitation anyway.
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1986 Berlinetta, 2.8L, newly rebuilt 700R4, 3.42 Posi. 127,000 miles and counting.
I've come to realize that I'm gonna have this car till it pukes for good, b/c I'll never be able to bring myself to sell it.
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1986 Berlinetta, 2.8L, newly rebuilt 700R4, 3.42 Posi. 127,000 miles and counting.
I've come to realize that I'm gonna have this car till it pukes for good, b/c I'll never be able to bring myself to sell it.
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