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if you have a missfire the catalytic converter will glow red. if is blocked it will aso glow red. the smell is probably closer to gunpowder.co2 has no odor. try checking fuel pressure if low check the fuel pump
IN the USA?
The car has OBD2 PCM.,
so the dash lamp called CEL glows. telling you that it is is misfiring
the lamp comes on or worse flashes, (in Canada it may not. glow)
the best practice, no matter, is have a scan tool connected to see if you get DTC errors. up hill. (and live sensor data , is better)
did you do the 60k mile service yet, every 60k, if not BINGO.
jerking is misfire.
the CEL on USA cars glows, then,
SPark plug , love to misfire , uphill, the more load the more pressure
the more likely the fail, can be seen on all good PRO spark plug testers. (pressure test machine)
can be one of 3 things.
1: lost compression on 1 or more cylinders.
2: bad spark to same.
3: bad fueling (too lean or too rich)
simple tests find true cause, got tools.? if not, its guessing time.
Since you\'re old school I would think you\'ve already checked the normal stuff like the fluid level in the transmission. If this is good, has the transmission ever been serviced? I\'m not familiar with your vehicle so if it has a filter it could be that is partially clogged, Does the fluid have a strong smell to it? Does is feel absolutely smooth or can you feel or see little flecks of something in it. You may solve this by dropping the pan and replacing the filter. But if that is the problem it will only be temporary as if there is debris in the pan you are ready for a rebuild.The sooner you do it, the better before you have hard part damage. Another possibility is a bad solenoid in the tramsission that isn\'t sensing the pressure until it is high enough to jerk when it kicks into gear. Again to even check this though you need a transmission guy to pull it and look it over. Sorry guy.
Cars not control choke themselves electronically, this is likely the car trying to warm itself up quickly. The jerking will occurs anytime you shift into gear at an RPM over a low idle as the torque converter is being engaged. If the high idle last more than a couple of minutes then you might have an issue.
Front brake rotors need to be turned and new pads. Adjust rear brakes. the front brakes are doing all of the stopping. (overheating the rotors, premature pad wear).
The first thing you do is run an OBD2 engine control module fault code test, this engine is fully electronically controlled. You will need a code reader to do this test, rent one or borrow one from a local auto parts store like Autozone or O'reilly. The test connector under the dash in front of the driver. See picture below.
ill assume only occurrs when drive train is warmed up...cold ok?shift valves sticking in valve body and a very common problem with these vehicles equipped with 5 speed auto trans.check fluid color.brown is normal on these units....black is bad.if its still brown and not black replace the valve body to eliminate this concern.its alittle pricey but about a third of the cost of transaxle replacement.
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