Auto Repair - Roadshow forum


2004 Hyundai Getz 1.3L Acceleration Problems

by bpretulac / February 9, 2018 4:10 PM PST

I have been having trouble with my car's acceleration (most prominently under load and on hills) for about a month with the issue increasing. The car runs fine at moderate speeds on flat roads ( motorways and such) but on hills the car reduces speed considerably even with the pedal flat to the floor. the thing I struggle with the most is that it is rather intermittent, one day its fine and the next I fear the car will stop moving completely. In search of remedying the issue I have had the oil changed, replaced the Fuel filter and air filter as well as having the cam belt, drive belts, water pump and coolant replaced. However the issue still persists. I am looking for any ideas as to what could be causing this issue.

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Clarification Request
Did anyone hook up the OBD and tell you what codes?
by R. Proffitt Forum moderator / February 9, 2018 4:15 PM PST

I'd get that read next.

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Clarification Request
Acceleration issues is often related to....
by James Denison / February 9, 2018 4:39 PM PST

The MAP sensor. The Mass Air Flow sensor.

All Answers

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Low power
by landdchamp Forum moderator / February 10, 2018 10:58 AM PST

Hi, bpretulac; If your vehicle is equipped with a catalytic converter, it could be broken internally. A chunk of the honeycomb material inside can block off the exhaust causing extreme backpressure, then the chunk can fall away and it be fine. Not an uncommon occurrence. A vacuum gauge inserted into the exhaust ahead of the catalytic converter can show if you have excessive backpressure, but you'd have to test it at the time the problem happens.
Good luck.

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