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1999 elantra starts up and runs ok then will surge/buck in 1&2 gear while driving steady and will stall at a stop. then restarts and will be driveable?

Submitted: 31 days and 20 hours ago.

Category: Car

Value: $13

Status: CLOSED

Year: 1999
Make: Hyundai
Model: elantra
Engine: 4 cyl

Already Tried:
new TPS sensor and cleaned throttle body, new oxygen sensor in exhaust manifold

Posted by brownjeff 31 days and 20 hours ago.

Answer

Have you tried cleaning the mass air flow sensor?

31 days and 20 hours ago.

Reply

Yes, with some spray cleaner. forgot to mention that car ran fine prior to the water pump belts breaking and the car being driven home until it burst the radiator top. could any of the sensors have been cooked in the engine??

Posted by brownjeff 31 days and 20 hours ago.

Answer

Yes the over heating could be a problem. The first thing you need to do is a compression test to make sure the engine is mechanically sound.

31 days and 19 hours ago.

Reply

The compression is with in spec. on all cylinders, just can't figure out what went out or what sensor could make this happen. any ideas on what i should start with to replace?

Accepted Answer

The next sensor I would replace is the temperature sensor for the computer as it may have been damaged due to the over heating issue. If the computer thinks the engine is at a different temperature than it really is it can cause the problem you are describing.

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Accepts:
Expert:	brownjeff
Pos. Feedback:	100.0 %
Answered:	10/21/2009

ASE Certified Technician

17 years experience, ASE certified, dealership certified, Service Manager for 15 years,

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Question

1999 elantra starts up and runs ok then will surge/buck in 1&2 gear while driving steady and will stall at a stop. then restarts and will be driveable?

Optional Information

Year: 1999
Make: Hyundai
Model: elantra
Engine: 4 cyl

Already Tried:
new TPS sensor and cleaned throttle body, new oxygen sensor in exhaust manifold

Answer

Have you tried cleaning the mass air flow sensor?

Reply

Yes, with some spray cleaner. forgot to mention that car ran fine prior to the water pump belts breaking and the car being driven home until it burst the radiator top. could any of the sensors have been cooked in the engine??

Answer

Yes the over heating could be a problem. The first thing you need to do is a compression test to make sure the engine is mechanically sound.

Reply

The compression is with in spec. on all cylinders, just can't figure out what went out or what sensor could make this happen. any ideas on what i should start with to replace?

Accepted Answer

The next sensor I would replace is the temperature sensor for the computer as it may have been damaged due to the over heating issue. If the computer thinks the engine is at a different temperature than it really is it can cause the problem you are describing.

View Full Image

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Have your own Car question?

Related Car Topics:

Question

1999 elantra starts up and runs ok then will surge/buck in 1&2 gear while driving steady and will stall at a stop. then restarts and will be driveable?

Optional Information

Year: 1999Make: HyundaiModel: elantraEngine: 4 cyl Already Tried: new TPS sensor and cleaned throttle body, new oxygen sensor in exhaust manifold

Answer

Have you tried cleaning the mass air flow sensor?

Reply

Yes, with some spray cleaner. forgot to mention that car ran fine prior to the water pump belts breaking and the car being driven home until it burst the radiator top. could any of the sensors have been cooked in the engine??

Answer

Yes the over heating could be a problem. The first thing you need to do is a compression test to make sure the engine is mechanically sound.

Reply

The compression is with in spec. on all cylinders, just can't figure out what went out or what sensor could make this happen. any ideas on what i should start with to replace?

Accepted Answer

The next sensor I would replace is the temperature sensor for the computer as it may have been damaged due to the over heating issue. If the computer thinks the engine is at a different temperature than it really is it can cause the problem you are describing. View Full Image

Related Car Questions

Year: 1999
Make: Hyundai
Model: elantra
Engine: 4 cyl

Already Tried:
new TPS sensor and cleaned throttle body, new oxygen sensor in exhaust manifold

The next sensor I would replace is the temperature sensor for the computer as it may have been damaged due to the over heating issue. If the computer thinks the engine is at a different temperature than it really is it can cause the problem you are describing.

View Full Image