After two weeks of hard shifting, and the transmission acting up, the check engine light finally came on. I've been taking it really easy, so only god knows what it is this time. Do you think I should get the tranny components like vb, sp, and a pcm reflash as well as whatever is wrong with the engine now? Any idea what it could be or if the tranny can make affect the engine.(The light is solid, so i dont think its misfiring)
Damn Engine Light
- Thread starter KD00LS
- Start date
Having the check engine light come on could be a good thing if you've been having problems lately. Now you can take the car to Autozone and have them pull the codes from the PCM. At least that will give you an idea of what you're up against.
I just like to know what is going on with the car before the dealer starts swapping out random parts. I always run a diagnostic before I go to the dealer. (if I have time) Even when my cars are still under warranty. That way I can do some research and don't have to take the dealers word that they fixed the problem.
Get a diagnostic (for free) from autozone, post the code on this site and we can help you reseach the problem. We won't tell dad.
If the dealer swaps some parts and clears the code and the ls still doesn't run right, your at the dealers mercy.
No code and no research = no peace of mind.
Get a diagnostic (for free) from autozone, post the code on this site and we can help you reseach the problem. We won't tell dad.
If the dealer swaps some parts and clears the code and the ls still doesn't run right, your at the dealers mercy.
No code and no research = no peace of mind.
Quik LS
Dedicated LVC Member
yes - the low octane fuel could cause a engine light to come on.
One way to understand the depth of the problem is to simply disconnect the battery (undo the 8mm bolt on the grounding strap form the battery to the body) for 10mins and then reconnect.
drive the car around and see if the light comes back on. If it was the octane and you do not have any left in the tank - it shouldn't come back on.
One way to understand the depth of the problem is to simply disconnect the battery (undo the 8mm bolt on the grounding strap form the battery to the body) for 10mins and then reconnect.
drive the car around and see if the light comes back on. If it was the octane and you do not have any left in the tank - it shouldn't come back on.
Quik LS
Dedicated LVC Member
shuddering in Park is not likely a trannie problem, you never know, but not likely.
KD00LS said:
I am curious. Does it shudder more when the engine is cold? Mine does this when it is cold, but after it is warm, it is smooth. I swapped coils from our other LS which does not shudder, and it did not help. I may start troubleshooting this problem soon. You may have two separate problems.
FreeFaller
USAF LS8
Quik LS said:
Yeah, this is almost always a misfire problem of some sort...(coil packs, oil in the combustion chamber, fouled plugs...etc.)