need help
Thread Starter
Intermediate
Joined: Feb 2012
Posts: 40
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From: EL CAJON CA
need help
ok so i was havin a lack of power and i knew before that my tranny was bad but now i have a new tranny in my vette and there still that lack of power. like today i felt like the car was gonna shut off, my exhaust is no where near as loud as before and my motor sounds like its running under water or misfiring. i was thinking maybe bad gas or my fuel injectors or bad.....what u guys think[/SIZE]
Melting Slicks
Joined: Jun 2013
Posts: 3,065
Likes: 39
There are so many possibilities. If you have never worked on a car before, like diagnostic work, not just DIY stuff, the answers you receive here will probably be pretty useless. You should start with a basic spark and fuel diagnosis, and test compression as well. Then I would start testing things that can affect air/fuel ratio.
If you have never done this stuff before, I suggest just bringing it to the shop.
If you have never done this stuff before, I suggest just bringing it to the shop.
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Joined: May 2010
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ok so i was havin a lack of power and i knew before that my tranny was bad but now i have a new tranny in my vette and there still that lack of power. like today i felt like the car was gonna shut off, my exhaust is no where near as loud as before and my motor sounds like its running under water or misfiring. i was thinking maybe bad gas or my fuel injectors or bad.....what u guys think[/SIZE]
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Melting Slicks
Joined: Jun 2013
Posts: 3,065
Likes: 39
I thought this too after I re read it and saw the part about the exhaust tone being quieter, but was too lazy to respond at the time. lolGood place to check though, unbolt your exhaust from the manifold, and take out the y pipe, then take it for a ride. If your power comes back somewhat then you found your problem. Had a similiar problem like this on my friend's 86 Z28.
If you get a check engine light just reset it.
Advanced
Joined: May 2010
Posts: 74
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ok so i was havin a lack of power and i knew before that my tranny was bad but now i have a new tranny in my vette and there still that lack of power. like today i felt like the car was gonna shut off, my exhaust is no where near as loud as before and my motor sounds like its running under water or misfiring. i was thinking maybe bad gas or my fuel injectors or bad.....what u guys think[/SIZE]
Thread Starter
Intermediate
Joined: Feb 2012
Posts: 40
Likes: 0
From: EL CAJON CA
ok guy im really thank full for all the help, a few things i just notice when i was out side fooling around with the car....one of my spark plugs had a hole burn in it so the spark was shooting out the side of the wire! dont know if this would cause that much loss in power.
Melting Slicks
Joined: Jun 2013
Posts: 3,065
Likes: 39
ok guy im really thank full for all the help, a few things i just notice when i was out side fooling around with the car....one of my spark plugs had a hole burn in it so the spark was shooting out the side of the wire! dont know if this would cause that much loss in power.
Le Mans Master
Joined: Sep 2013
Posts: 6,192
Likes: 750
From: near the thumb in the mitten
Raw fuel kills cat.conv. quick, the "honey comb" type converters can be restricted in a short time from unburned fuel. When the spark jumps out of wire to ground, the fuel sprayed by injector passes unburned into exhaust. If it is up stream of O2 sensor, O2 will send rich signal to ecm which in turn reduces fuel to engine. You need to deal with spark plug and wire(s) soon as you can. I would suggest check converter after that,