I was on my way home on the freeway going about 65 mph when my engine started bogging down as if it wasn't getting either fuel, air or spark. I also noticed it idles a bit higher when it warms up. It seemed to do fine at low speeds "under 40 mph". I drove to work and back today and it was fine untill I got close to home. I checked the fuel, air filter and fuses. The cap, rotor, plugs, altenator and battery are all new. I just put a crate motor in it last year and I've had no problems untill now. Any ideas?
Some things you may want to check would be the fuel pump, oxygen sensors and your catylitic converter. and obviously all the filters.
A quick test on the fuel pump would be to get down to the gas tank and tap it a little bit with something. This may shake the fuel pump around causing any clog to clear out. As for the filters(oil,air,fuel) you may want to replace them if there is any sign of them being dirty or clogged.
Run the car for about a half hour. Then you will have to look under the car (while still running) and look at your cat. If it is glowing red, this means that it most likely has been clogged with build up restricting your exhaust.
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When your engine light flashes a you the computer is telling you that you have a hard, cosistant miss fire (one of the cylinders is not firing) you need to get the codes read to find out what cylinder it is then go from there.
Hi. I have two Dynasty LE cars, (a 91 and a 93). Both have the 3.3 litre. The 1991 had almost the same problem as yours except it would only do it once the engine warmed up, (similar to your freeway issue, given distance and time for the engine to warm up to operating temp.) I had it in about three shops before the dealer found an intermittent fault with the cam and crank sensors. I replaced them and now it runs just fine. I hope this helps.
hey--it could any of the below: 1. low transmission fluid
2. internal transmission wear - probably time for an
overhaul or some kind of rebuilding
If the RPMS DON T RISE - like the engine is bogging down
and does not have the power to move the car faster I would suspect
1. a lack of fuel supply - like a weak fuel pump or a
restriction in the fuel filter
2. restriction in the exhaust system like a catalytic converter or muffler 3. an
engine sensor is out of whack - which will require the use of a computer scanner
to read the computer memory