Intermitten hesitation on acceleration
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Intermitten hesitation on acceleration
Hello all! I need help!!!!!!!!!!!!!!!!!!!!!!!!
i have been reading through the forums and it sounds like I could rebuild the entire car with all the different suggestions.
Here is what I have. I am the second owner. 1990 ls400 with 140k. The first owner took great care of the car.
The only thing i need to do is replace the leaking power steering pump.. i'll get to that after i can figure out the hesitation issue.
When I would accelerating, the car would hesitate. No stored codes. Here is what I have done so far. I replaced the IAC value with a used one. Same symptoms. I also removed the throttle body and cleaned it completely out. Same symptoms. (the car idles perfectly fine) . I left it running for 30 minutes with no issues.
Here is what I noticed, it seems to only happen when the weather is hot or maybe the car is running in hot weather? I drove it to work and back on serveral occasions and the ambient temperature is around 60 degress.
I bought this car for my daughter's 16th birthday, and now I'm being hounded to fix the car!! I don't want to dump alot of money into it... I'm at a loss!!
i have been reading through the forums and it sounds like I could rebuild the entire car with all the different suggestions.
Here is what I have. I am the second owner. 1990 ls400 with 140k. The first owner took great care of the car.
The only thing i need to do is replace the leaking power steering pump.. i'll get to that after i can figure out the hesitation issue.
When I would accelerating, the car would hesitate. No stored codes. Here is what I have done so far. I replaced the IAC value with a used one. Same symptoms. I also removed the throttle body and cleaned it completely out. Same symptoms. (the car idles perfectly fine) . I left it running for 30 minutes with no issues.
Here is what I noticed, it seems to only happen when the weather is hot or maybe the car is running in hot weather? I drove it to work and back on serveral occasions and the ambient temperature is around 60 degress.
I bought this car for my daughter's 16th birthday, and now I'm being hounded to fix the car!! I don't want to dump alot of money into it... I'm at a loss!!
#4
Pole Position
Here is what I noticed, it seems to only happen when the weather is hot or maybe the car is running in hot weather? I drove it to work and back on serveral occasions and the ambient temperature is around 60 degress.
I bought this car for my daughter's 16th birthday, and now I'm being hounded to fix the car!! I don't want to dump alot of money into it... I'm at a loss!!
I bought this car for my daughter's 16th birthday, and now I'm being hounded to fix the car!! I don't want to dump alot of money into it... I'm at a loss!!
You're a good parent, buying your daughter a Lexus at 16, She's a lucky girl. The Ls400 is one of the most reliable cars.
But....it can get very expensive chasing down a problem. I would suggest changing the Engine Coolant Temp (ECT) sensor. It's one of the cheaper parts and makes a big difference on how the car performs. (Most important sensor your car has) I'm sure with 140K it needs to be changed.
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