V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

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Old Aug 28, 2006 | 11:46 PM
  #1  
83camaroMN's Avatar
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From: Minnesota
Car: 1998 Mustang
Engine: 3.8L V6
Transmission: Automatic with overdrive
Axle/Gears: 2.73:1 axle ratio
???

I am realy not sure were to post this, but if it does not belong here just move it.
I have a 1983 camaro with a 2.8L an it is like bogging out every time I hit the gas the RPMS go down on it and it wants to kill over, I also notice when im on the road and I get up to 55 MPH the thing like keeps jerking and crap. So anyone know whats causing this? I forgot it only does this sometimes so I just dont get it.
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Old Aug 29, 2006 | 12:17 AM
  #2  
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From: Sayreville NJ
sounds liek a bad fuel filter, or a bad fuel pump
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Old Aug 29, 2006 | 01:38 AM
  #3  
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From: Minnesota
Car: 1998 Mustang
Engine: 3.8L V6
Transmission: Automatic with overdrive
Axle/Gears: 2.73:1 axle ratio
I just put a new fuel filter in it so prob the pump. Also it got worse when I took the belt and pully for the pollution crap. Like today when I went on the road it just rained wet pavment I was going to squeal the tires so I flore it then the car almost killed over I was like WTF.
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Old Aug 29, 2006 | 05:45 AM
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Project: 85 2.8 bird's Avatar
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From: BFE, MD
Car: 13 Ram 1500/ 78 Formy
Engine: 5.7 / 7.4
Transmission: 6sp / TH350
Axle/Gears: 3.55 posi / 3.23
soo, put the poluttion controls back on and let us kno whow it runs
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Old Aug 29, 2006 | 08:10 AM
  #5  
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From: lakewood colorado
Car: 84-92 firebirds
Engine: 2.8/3.1
Transmission: auto
I would check for vacuum leaks before changing the fuel pump. I have an '84 carbed 2.8 and trust me, if it was the fuel pump you would'nt get anywhere near 55 MPH. I'm assuming that the car starts and idles just fine so I would check for leaks on the ported vacuum hoses first. The jerking at 55 MPH could be a totally unrelated problem having to do with TCC lockup, but could be part of the same problem. Concentrate on fixing the bogging problem first.
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Old Aug 29, 2006 | 09:48 AM
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From: Casselberry, FLA
Car: 88 V6 'bird/89TBI bird/85 T/A
Engine: 2.8/TBI/TPI
Transmission: V8 T-5/700R4 x2
Axle/Gears: 3.42 open/2.73 open/ 3.27 9 bolt
I'm with 8492; especially if you just did something in particular to it. You just messed with emission controls. Anytime you do something to your car and then it doesn't work the same, just go back to what you worked on. If your smog pump was working then it may have put air in or taken air out of some not so healthy vacuum circuit that doesn't get the attention it once got.

Particularly look at the vacuum controls that go to the back of the smog pump and diverter valve.

Good luck!
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Old Aug 29, 2006 | 10:43 AM
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83camaroMN's Avatar
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From: Minnesota
Car: 1998 Mustang
Engine: 3.8L V6
Transmission: Automatic with overdrive
Axle/Gears: 2.73:1 axle ratio
Originally Posted by 8492bird
I would check for vacuum leaks before changing the fuel pump. I have an '84 carbed 2.8 and trust me, if it was the fuel pump you would'nt get anywhere near 55 MPH. I'm assuming that the car starts and idles just fine so I would check for leaks on the ported vacuum hoses first. The jerking at 55 MPH could be a totally unrelated problem having to do with TCC lockup, but could be part of the same problem. Concentrate on fixing the bogging problem first.
I will have to check that out. And it does have a starting prob and a high idle when its cold I have to pump the gas like 4 times and still does not want to realy turn over then for the first few mins after getting it started the RPMs stay at 1500 and I cant kick it down. I dont know if this is all caused by the same prob.
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Old Aug 29, 2006 | 10:59 AM
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From: lakewood colorado
Car: 84-92 firebirds
Engine: 2.8/3.1
Transmission: auto
Not the same problem at all. It's just your electric choke and fast idle cam doing what it's supposed to. It won't kick down until the choke opens. BTW- the 2.8 carb is notorious for hard starting - don't worry about it.
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Old Aug 29, 2006 | 11:55 AM
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83camaroMN's Avatar
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From: Minnesota
Car: 1998 Mustang
Engine: 3.8L V6
Transmission: Automatic with overdrive
Axle/Gears: 2.73:1 axle ratio
Originally Posted by 8492bird
Not the same problem at all. It's just your electric choke and fast idle cam doing what it's supposed to. It won't kick down until the choke opens. BTW- the 2.8 carb is notorious for hard starting - don't worry about it.
Okay that expains it HAHA dam 2.8L.
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Old Aug 29, 2006 | 04:42 PM
  #10  
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From: desert
Car: only GM,88 camaro, 91r/s camaro, 91
Engine: Clean oil, looks fresh, no leaks
Transmission: Bright Red, never burnt, no leaks
Axle/Gears: currently whining
Thats the cool thing about fuel injection, My 91 3.1 fires right up, no hesitation ever,,.,. any how keep us updated to what your prob was
Thanks
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Old Aug 29, 2006 | 07:58 PM
  #11  
83camaroMN's Avatar
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From: Minnesota
Car: 1998 Mustang
Engine: 3.8L V6
Transmission: Automatic with overdrive
Axle/Gears: 2.73:1 axle ratio
I will keep you all updated. But today it was running fine it started good and it did not bogg out I flored it and squealed the tires a lil bit. My car was just sick that day .
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Old Aug 30, 2006 | 07:52 AM
  #12  
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From: lakewood colorado
Car: 84-92 firebirds
Engine: 2.8/3.1
Transmission: auto
If it's running fine now I assume you did'nt try to kick it down from high idle. My '84 would run like you know what if I forced it off high idle too soon (probably slightly flooded). Glad to hear you're running again.
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Old Aug 30, 2006 | 11:11 AM
  #13  
83camaroMN's Avatar
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From: Minnesota
Car: 1998 Mustang
Engine: 3.8L V6
Transmission: Automatic with overdrive
Axle/Gears: 2.73:1 axle ratio
Originally Posted by 8492bird
If it's running fine now I assume you did'nt try to kick it down from high idle. My '84 would run like you know what if I forced it off high idle too soon (probably slightly flooded). Glad to hear you're running again.
Yep, I did not try to kick it down so that could be it. But I have another prob HAHA my car burns LOTS of oil. Its always somthing LOL.

Last edited by 83camaroMN; Aug 30, 2006 at 11:19 AM.
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Old Aug 30, 2006 | 11:31 AM
  #14  
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From: Finland
Car: 83' Pontiac Firebird
Engine: 2.8 V6
Transmission: T5
Engines burn oil usually because:

1. Your valve stem seals are leaking.

2. Your piston rings are leaking.

This can be fixed sometimes by using a thicker oil, but if you're already using a thick oil and your engine still burns oil, then you're going to have to change seals/piston rings/pistons etc.
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Old Aug 31, 2006 | 10:10 PM
  #15  
83camaroMN's Avatar
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From: Minnesota
Car: 1998 Mustang
Engine: 3.8L V6
Transmission: Automatic with overdrive
Axle/Gears: 2.73:1 axle ratio
These probs im having are not daily. Today it did not burn lots of oil like it was before, and that jerking it has not done that in the past few days and it has not been bogging out, huh not anymore now thats just werd.
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Old Oct 25, 2006 | 09:02 PM
  #16  
83camaroMN's Avatar
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From: Minnesota
Car: 1998 Mustang
Engine: 3.8L V6
Transmission: Automatic with overdrive
Axle/Gears: 2.73:1 axle ratio
Cool its been a long time but wanted to let you all know I found out its my carb it needs to be rebuilt or replaced.
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Old Oct 26, 2006 | 03:07 AM
  #17  
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Car: 83' Pontiac Firebird
Engine: 2.8 V6
Transmission: T5
Great that you came back to tell us what was wrong with it. Many times these threads just die and none of us on the board know what was the problem.

And on a related note, remanufactured carbs are a bit pricey. And rebuilding is not the easiest thing, but do-able. What are you going to do?
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Old Oct 27, 2006 | 07:48 PM
  #18  
83camaroMN's Avatar
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From: Minnesota
Car: 1998 Mustang
Engine: 3.8L V6
Transmission: Automatic with overdrive
Axle/Gears: 2.73:1 axle ratio
Originally Posted by molopaa
Great that you came back to tell us what was wrong with it. Many times these threads just die and none of us on the board know what was the problem.

And on a related note, remanufactured carbs are a bit pricey. And rebuilding is not the easiest thing, but do-able. What are you going to do?
Yeah I almost forgot about this thread but yeah the carb is pretty bad. I will prob just bring it in and get it rebuilt but unsure what I will do. It is still driveable but bogs out alot and starts very hard when cold it starts realy good when its been running for awhile. And that jerking at 55MPH I think thats my POS TH200c slipping, prob from me constanly floreing the car.
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