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I have a 2001 honda civic ex with the 1.7 vtec and a manual transmission. After driving on the interstate at 70 mph for more than 15 minutes I get off onto a main road and the car feels sluggish and doesn’t want to rev past 3000 rmps. There’s no error codes and once the car cools down for a few minutes it runs fine. I’ve been keeping up with the “basics” and the engine temp never rises about 50%. Any ides?
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I’ll give that a shot thanks, your right about the basics, I’ve been sticking with the maintenance guide as far as fluids and filters. I’ve been told I might have a clogged catalytic converter but haven’t had a chance to test it.
If it was a clogged cat, you would get a “cat efficiency” code. You should only trust the opinion of a fully licensed employed mechanic. Be wary of “shade tree mechanics.” From my experience, they have inflated opinions of their expertise.
Gotcha, that’s what I get for listening to the guy from the parts store. I’m gonna try giving sea foam a shot.
I would take it somewhere that does the drip type of cleaning. They run a steady stream of cleaner straight into your intake via a vacuum tube for about twenty minutes. This is much more thorough than something you just dump in your tank. It’s typically inexpensive. If you live near a Firestone I would recommend going there, and yes I am bias.
Yeah..It could be in the early stages of failure. If not setting a cat eficiency code it’s doubtful however.
I would connect a scan tool and read the fuel trims while it’s acting up. Fuel trim would give you an idea if a lean condition is causing your problem.
I wonder if keeping up with filters and basics includes a fuel filter? Often they are overlooked… A clogged cat most often causes an engine to run on the warm side, but not always…
Since you didn’t mention the engine knocking or missing I’d be betting on something to do with the fuel… I’m leaning towards a filter, bad pump or fuel pressure regulator… I know you said it’s fine when it cools down… but remember that the fuel pump can cool down in that time to…
I’d have your fuel pressure tested and your compression tested.
Careful with sea foam, it can brake up old gas that has turned bad and settled to the bottom of your tank and put it straight into the filter…
Good luck!
“You should only trust the opinion of a fully licensed employed mechanic. Be wary of “shade tree mechanics.” From my experience, they have inflated opinions of their expertise.”
This comment pertains to people in this forum as well.
If you don’t remember the last time you changed the fuel filter. . . I would go ahead and do that. It may or may not be the problem but often fuel filters are A problem, as they get overlooked, so it isn’t a bad idea to rule that out.
My cars a 7th gen civic so apparently it has a fuel “sock” or screen, not an actual filter. Anybody know much about these?
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