Main IndexAuto Repair Home Search Posts SEARCH
POSTS
Who's Online WHO'S
ONLINE
Log in LOG
IN







Car has no power! help.


  Email This Post



Guest
Anonymous Poster

Mar 20, 2009, 4:20 PM

Post #1 of 3 (1393 views)
Shortcut
Car has no power! help. Sign In

I have a 1993 Chevy Corsica with a 3.1 V6 with about 140k miles on it. A bit ago my car started acting funny in that it would have little power and then jump to full power and back to nothing again and have a rough idle at stop signs. Sounded like my TPS was goin bad and so I replaced it and replaced the gaskets on the throttle body because they were crap too. Well it seemed to help a bit but my car is now doing it all again. When in gear my car has a small shake like a rough idle would produce but out of gear it does nothing. It idles very well out of gear and sounds fine. There are no error codes in my car either. When I accelerate it feels like i have 1/3 of the power I should have and sometimes I will have 100% power like a brand new car. Today I punched it to the floor and although the RPMs seemed to go as high as they should in each gear it took me over 15 seconds to get to 60MPH! This has become dangerous when pulling out of driveways or on roads because I don't know when it will do this and when it won't. It will switch in and out of fine and crap modes even while im driving. Somedays its good somedays its bad. I have no idea what the problem is or where to look now.
Here are things ive either replaced or eliminated as potential problems so far: TPS, idle air/throttle body gaskets, fuel filter, spark plugs, air filter, and all fluid levels, TCC(for the bad ingear idle when stopping). I even put some injector cleaner the other day. Anyone have any ideas?

When the problem comes on or goes away while im driving it is like a flip of the switch and the car jerks from the boost of power that it should always have. Even if I hand shift each gear I don't have very much power in any gear.

Any ideas?


Loren Champlain Sr
Veteran / Moderator


Mar 20, 2009, 6:46 PM

Post #2 of 3 (1386 views)
Shortcut
Re: Car has no power! help. [In reply to] Sign In

May be way off base, but you may want to check for restricted exhaust? Sometimes, a catalytic converter will 'break' up, internally, and temporarily block off the exit causing a severe loss of power. The chunk of cat will fall away and then be fine. Just a guess.
Loren
SW Washington


Guest
Anonymous Poster
dusty_case@yahoo.com

Apr 4, 2009, 3:12 AM

Post #3 of 3 (1363 views)
Shortcut
Re: Car has no power! help. [In reply to] Sign In

I had a car like yours and it turned out to be a bad o2 sensor. or it could be a egr valve. oh if you have a bad plenum gasket it could be sucking air in or even a bad vacuum line could do it to




Car has no power! help.


  Email This Post
 
 






Latest Forum Post
Hello, So I have a 2003 Sonoma SLS 4.3L V6 with 166,000 miles and about a week ...
It's almost midnight, and the temperature outside is 38°C (100°F) at the momen...
To begin, Engine is at operating temp; no over or under heating issues with engi...
     Replaced the original GM R4 compressor , today . ...
The front hub on my 2002 Isuzu Rodeo 4x4 doesn't look anything like the pictures...
Dear all: First post so please be gentle. Please note that I am quite technica...

Feed Button


Used Car Search
Used Car Price Ranges:
Under $5,000
$20,000
$35,000

$10,000
$25,000
$40,000
$15,000
$30,000
$45,000
Over $45,000
Search used Cars By Manufacturers:
Used Acura
Used Audi
Used BMW
Used Buick
Used Cadillac
Used Chevrolet
Used Chrysler
Used Dodge
Used FIAT
Used Ford
Used GMC

Used Honda
Used Hyundai
Used Infiniti
Used Jaguar
Used Jeep
Used Kia
Used Land Rover
Used Lexus
Used Lincoln
Used Mazda
Used Mercedes-Benz

Used MINI
Used Mitsubishi
Used Nissan
Used Porsche
Used Saab
Used Scion
Used Subaru
Used Suzuki
Used Toyota
Used Volkswagon
Used Volvo
2010 Honda Civic
$15,770
2004 Jeep
$8,991
2012 Mustang
$22,990
1997 Honda Cr-V
$4,490
2010 Toyota Prius
$17,496
2010 BMW 328
$26,980




Automotive Forum Categories
Automotive Repair
Auto Body Repair and Refinishing
AC Auto Repair Help Forum
Automotive Wiring and Electrical

Auto Insurance and Car Financing
Automotive World
Brake Systems
Car Stereo Repair Advice
Car Troubleshooting
Engine and Car Noises
Engine Fault Codes
Engine Troubleshooting
Exhaust System Repair

Steering and Suspension
Tricks of the Trade
General Discussions
Car Shows and Events
The Bargin Bin
Motor Vehicle Inspection
Car Care Tips
Traffic Ticket Help
Car Racing

Gasoline, Motor Oils, Concept Cars
Remote Control Cars and Vehicles
Truck Repair
Truck Repair Advice


Truck Engine Repair
Truck Suspension Repair
Motorcycle Repair
Motorcycle and ATV Repairs

Motorcycle Body Repair
Motorcycle Clutch Repair
Motorcycle Engine Repair
Motorcycle Seat Repair
Car Forum Posts - Sitemap


Search for (options)