loss of compression/ help
mthaner
04-01-2004, 10:01 AM
I have just recently accuired a 85 civic. When I drive the car in the morning to work I get a loss of compression. the cars putters and losses power, I down shift and once in awhile it will catch and regain power, sometimes it dies and I have to try and restart it... Not fun on the freeway!
The engine does run high and we have tried to fix the idle, but with no luck...
Any help would be greatly appreciated
Thank you,
Tracey
The engine does run high and we have tried to fix the idle, but with no luck...
Any help would be greatly appreciated
Thank you,
Tracey
lxndr
04-01-2004, 06:12 PM
This actually sounds like you have a bad carburetor or a vacuum leak.
First, check to make sure that all of your vacuum lines are in good condition and that they are all connected to where they should be. You can also spray a little starting fluid or carburetor cleaner around the carburetor and intake manifold gaskets (while the engine is running) to see if there is a leak. If there is a leak you will hear the engine idle smoothly for a moment as the fluid temporarily seals the leak.
Squirt a little card cleaner into the carburetor.
Next, check your battery cables, coil, voltage and spark plugs/wires to make sure that there is not a simple electrical/spark problem.
After that, check your fuel pressure to make sure that you are getting enough fuel to the carburetor.
If you get this far and the problem still hasn't been found, then I'm pretty sure that you will need to rebuild or replace the carburetor.
All of these suggestions are made assuming that you have already given the car a complete tune up, because a clogged fuel filter is easy to replace but can make your life miserable!
Anyway, That's where I'd start (assuming that your '85 Civic is not an SI).
First, check to make sure that all of your vacuum lines are in good condition and that they are all connected to where they should be. You can also spray a little starting fluid or carburetor cleaner around the carburetor and intake manifold gaskets (while the engine is running) to see if there is a leak. If there is a leak you will hear the engine idle smoothly for a moment as the fluid temporarily seals the leak.
Squirt a little card cleaner into the carburetor.
Next, check your battery cables, coil, voltage and spark plugs/wires to make sure that there is not a simple electrical/spark problem.
After that, check your fuel pressure to make sure that you are getting enough fuel to the carburetor.
If you get this far and the problem still hasn't been found, then I'm pretty sure that you will need to rebuild or replace the carburetor.
All of these suggestions are made assuming that you have already given the car a complete tune up, because a clogged fuel filter is easy to replace but can make your life miserable!
Anyway, That's where I'd start (assuming that your '85 Civic is not an SI).
QuackerStacker
04-02-2004, 03:06 AM
when it is puttering as you put it do you see any kind of smoke of any color ........and is it SI or not
Automotive Network, Inc., Copyright ©2025