1999 Honda Accord I think my transmission is bad

Tiny
TONYL6596
  • MEMBER
  • 1999 HONDA ACCORD
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 195,000 MILES
My car struggles to get up to highway speed and is not shifting properly.
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Saturday, January 9th, 2010 AT 9:11 AM

10 Replies

Tiny
KHLOW2008
  • EXPERT
Hi tonyl6596,

Thank you for the donation.

The description of the symptoms are not clear for us to understand the situation and I would like to know the following.

1. Struggling to get to highway speeds.
Can you explain in more details?
Is engine revving but vehicle speed is not increasing fast enough?

2. Not shifting properly. Do you mean the shifts are delayed?

Apart from above :

3. Is the Check Engine Lamp indicating while driving?
4. Do you have any noticeable components that is not functioning? Eg, speedometer not working etc.
5. Did you check the transmission fluid?
6. Was any repairs done prior to the problem occurring?
7. Is there anything that you think might help us to understand the problem?

My feeling after reading your question is that the problem is more likely to due to engine rather than transmission.
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Saturday, January 9th, 2010 AT 11:58 AM
Tiny
TONYL6596
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That is exactly what is happening
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Saturday, January 9th, 2010 AT 12:04 PM
Tiny
TONYL6596
  • MEMBER
The engine is revving buit it is not accelerating the shifts are delayed. The maintainence required light is on but it has been on for years.
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Saturday, January 9th, 2010 AT 12:08 PM
Tiny
KHLOW2008
  • EXPERT
Get a free scan done at Autozone and let me know the exact trouble codes retrieved.

The CEL can mean more than 1 possible fault and previously it could be something not related to the transmission but now additional trouble codes might be present.
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Saturday, January 9th, 2010 AT 12:18 PM
Tiny
TONYL6596
  • MEMBER
The codes that came back are:P0172.P0420.P1259
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Monday, January 11th, 2010 AT 12:22 PM
Tiny
KHLOW2008
  • EXPERT
P0172 = Fuel system too rich. It could be caused by many different problems and we have to go about performing troubleshooting but we will skip this first as P1259 might be the cause of it.

P0420 = Catalyst system efficiency below threshold. Could be a faulty catalytic converter or caused by P0172.

P1259 = VTEC system malfunction. Check your engine oil level and condition. When the VTEC system fails, power loss occurs and it would cause the transmission to shift erratically as the engine is struggling.

You should be due for an oil change if the oil level is correct.
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Monday, January 11th, 2010 AT 1:14 PM
Tiny
TONYL6596
  • MEMBER
Should I have the oil changed to see if this corrects the problem before I take it to a repair shop?
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Monday, January 11th, 2010 AT 1:18 PM
Tiny
KHLOW2008
  • EXPERT
If the last oil change was done long ago, then I would say get the oil changed now. If the change was recent, check the oil level and top up if necessary. Low oil level would cause the P1259 code to appear.
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Monday, January 11th, 2010 AT 1:36 PM
Tiny
TONYL6596
  • MEMBER
I had the oil changed. The car is runing the same
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Monday, January 11th, 2010 AT 4:34 PM
Tiny
KHLOW2008
  • EXPERT
You just had the oil change?

Did you reset the trouble code and did it still show?

You might need to run the engine for a while to get it correct.

Erase the trouble code and then check and see if the same trouble codes comes back?

Btw were the spark plugs checked?
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Monday, January 11th, 2010 AT 4:45 PM

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