Question about Chevrolet S 10

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My 2001 s10 will stall out when i'm driving it up a hill or when truck is under load. the engine acts like its running out of gas. I have replaced fuel filter and it still acts up but only after about an hour of driving or when weather is hot outside. engine is not overheating..any ideas?

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Check your transmission fluid -- if it is low or really dirty, the transmission will require more power to turn the wheels. This will be even more apparent after heating up the system while driving, and even more when under load or up a hill -- the transmission can reduce the torque to your wheels, bogging down the engine. Transmission fluid acts as a coolant as well as lubrication for your transmission system, so even if your engine is running at a good temperature, your transmission might be overheating. If you are low on transmission fluid, fill it up and drive it around for a bit. If that resolved the issue, please take your truck to a mechanic and have them check your transmission for leaks (this is a closed system and should not loose fluid if there is no leak). If your transmission fluid is full, but burned or dirty looking (dark brown, black, or grainy) you should have your transmission flushed and filled, and have your transmission fluid filter replaced ASAP -- this can cause more damage to the system and cost a LOT if you don't get it fixed quickly.
Please keep in mind that the transmission is a very complex system that is not designed to be worked on by anyone without experience and training. The fluid pan usually has no drain plug (like the oil system does) so to replace the fluid you have to take the casing apart ... and when putting the system back together after a repair it is very easy to accidentally put a bolt in the wrong place and trash your whole transmission.

Posted on May 26, 2011

Testimonial: "when I looked at tranny fluid it did look like a red rust color and slight debris was noticed. I'll take it to a transmission shop in a couple days."

  • Dave
    Dave May 27, 2011

    Transmission fluid starts out red .. so a reddish rust color is not bad ... the debris in the fluid could cause you issues in the longer term ... but I don't know that it would lead to the issue that you are facing -- the other solution that was offered seems to be the more likely scenario at this point. For now, save the money on checking the transmission and get the fuel pump first. If the transmission fluid is still more red than brown or black, then you can put it off for a bit. While you are getting the fuel pump changed out, you could ask how much a fresh transmission filter would cost ... that would help reduce the debris in your fluid, and extend the life of your transmission.. Best of luck!

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Check the Fuel Pressure, I bet your fuel pump is failing

Posted on May 26, 2011

Testimonial: "took it to mechanic. fuel pump did need to replaced. I will replace it when I have money since it is expensive. I'll let you know if this fixes issue"

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Check the ODB codes. I think you will find one of the Crankshaft Sensors or the Camshaft Sensors is bad and needs to be replaced. This will fix your problem.

Posted on May 26, 2011

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