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Old 08-20-2007, 08:56 PM   #1
specialist
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Jetta 2000 1.8T no forward or reverse when hot

Hi everyone,

I need help with a vw jetta 2000 1.8 t.When the cars is cold and start driving,no problem,when the car is hot it won't go forward nor backward untill it cools again and it starts drive normally.No trouble codes found in transmission module.Found 3 fault codes in engine module,17521,16804,16795.
Does anyone has or has hear of this problem before?
thanks,
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Old 08-21-2007, 12:56 AM   #2
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Re: Jetta 2000 1.8T no forward or reverse when hot

is it overheating? because an engine will shut off most of its abilities to run and drive it the computer thinks it will harm itself. try flushing the radiator to see if you had any clogs or if its really dirty. refill it and run it and see if it gives you the same problem at idle temp.
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Old 08-26-2007, 10:17 PM   #3
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Re: Jetta 2000 1.8T no forward or reverse when hot

Sounds like the transmission fluid is very low.
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Old 08-27-2007, 12:26 PM   #4
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Re: Jetta 2000 1.8T no forward or reverse when hot

Quote:
Originally Posted by veedubmechanic
Sounds like the transmission fluid is very low.
not only fluid level is ok but the transmission has been fully overhauled and it remains the same.I was thinking of the transmission fluid temperature sensor.
thanks,
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Old 08-27-2007, 12:30 PM   #5
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Re: Jetta 2000 1.8T no forward or reverse when hot

Quote:
Originally Posted by 2001jettavr6
is it overheating? because an engine will shut off most of its abilities to run and drive it the computer thinks it will harm itself. try flushing the radiator to see if you had any clogs or if its really dirty. refill it and run it and see if it gives you the same problem at idle temp.
Hi, no the car does not overheat and is either overheating.All radiator hoses has been changed and thermostat.Systeem has been completly flushed and fill with engine coolant.

thanks,
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Old 08-30-2007, 10:06 PM   #6
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Re: Jetta 2000 1.8T no forward or reverse when hot

17521
P1113
Bank1-Sensor1 Internal Resistance too High

Repalce your front o2 sensor.

16804
P0420
Catalyst System,Bank1 Efficiency Below Threshold

May need a new cat, but replace the front o2 sensor first.


16795

P0411
Sec.Air Inj.Sys. Incorrect Flow Detected

This could be caused by alot of things, most common is the secondary air pump and rear o2 sensor.
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Old 09-12-2007, 09:48 AM   #7
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Re: Jetta 2000 1.8T no forward or reverse when hot

Quote:
Originally Posted by veedubmechanic
17521
P1113
Bank1-Sensor1 Internal Resistance too High

Repalce your front o2 sensor.

16804
P0420
Catalyst System,Bank1 Efficiency Below Threshold

May need a new cat, but replace the front o2 sensor first.


16795

P0411
Sec.Air Inj.Sys. Incorrect Flow Detected

This could be caused by alot of things, most common is the secondary air pump and rear o2 sensor.
Hi, Thanks for the codes advice.Today i could experince what the do.It is not what the told that the car won,t move forward or reverse.The car will move forward and reverse but does not shift second,third,forth and the ASR lamp start flashing.
No transmission code.
thanks,
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