Car start shaking in lower rpms
#1
Car start shaking in lower rpms
hi all. my car starts shaking in lower rpms i.e. if my car is on 80km/h and car is in 8th gear (lowest Rpm) it will start shaking unless i leave accelerator or press it even more to increase rpm then it goes normal. this only happens if my car is in lower revs i.e below 1400 revs (1.4). i tried to change the 4 tires, wheel balancing, i checked the rims and fixed them from the RIM repair shop. any other clue ? as per my mechanic all mechanical things are fine. any clue what could be the reason ?
#2
Likely is a misfire, but that should set a check engine light. If there is no check engine light, see if you can make it shake for as long as safely possible, if it is a misfire that will log a code.
Otherwise, it could be a faulty injector. You might try 2 bottles of Techron in the tank, and/or a different brand of fuel.
Otherwise, it could be a faulty injector. You might try 2 bottles of Techron in the tank, and/or a different brand of fuel.
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sajawalas (03-20-18)
#3
Likely is a misfire, but that should set a check engine light. If there is no check engine light, see if you can make it shake for as long as safely possible, if it is a misfire that will log a code.
Otherwise, it could be a faulty injector. You might try 2 bottles of Techron in the tank, and/or a different brand of fuel.
Otherwise, it could be a faulty injector. You might try 2 bottles of Techron in the tank, and/or a different brand of fuel.
#5
hi all. my car starts shaking in lower rpms i.e. if my car is on 80km/h and car is in 8th gear (lowest Rpm) it will start shaking unless i leave accelerator or press it even more to increase rpm then it goes normal. this only happens if my car is in lower revs i.e below 1400 revs (1.4). i tried to change the 4 tires, wheel balancing, i checked the rims and fixed them from the RIM repair shop. any other clue ? as per my mechanic all mechanical things are fine. any clue what could be the reason ?
Which model year do you have and how many miles on the car? Your profile says that you have a LS430. If so, perhaps folks on the LS430 forum can provide you more helpful suggestions. Regardless of the model year, before you replace anything, check if you have trouble codes or not. If there are no trouble codes, it is most likely a mechanical issue such as a worn engine mount or worn suspension part. If there are trouble codes, replace or repair the necessary parts as the trouble codes indicated.
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#7
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#8
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Which model year do you have and how many miles on the car? Your profile says that you have a LS430. If so, perhaps folks on the LS430 forum can provide you more helpful suggestions. Regardless of the model year, before you replace anything, check if you have trouble codes or not. If there are no trouble codes, it is most likely a mechanical issue such as a worn engine mount or worn suspension part. If there are trouble codes, replace or repair the necessary parts as the trouble codes indicated.
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Which model year do you have and how many miles on the car? Your profile says that you have a LS430. If so, perhaps folks on the LS430 forum can provide you more helpful suggestions. Regardless of the model year, before you replace anything, check if you have trouble codes or not. If there are no trouble codes, it is most likely a mechanical issue such as a worn engine mount or worn suspension part. If there are trouble codes, replace or repair the necessary parts as the trouble codes indicated.
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#9
Have you tried changing spark plugs and do a fuel injection cleaning, normally with those issues it shakes or idle is rough when the car is not moving but it may do it at speed if it is really bad. Are you sure your tires are balanced, if they are not balanced or a weight fell off the tire the car will shake at certain speeds.
#10
Have you tried changing spark plugs and do a fuel injection cleaning, normally with those issues it shakes or idle is rough when the car is not moving but it may do it at speed if it is really bad. Are you sure your tires are balanced, if they are not balanced or a weight fell off the tire the car will shake at certain speeds.
#11
Well it seems you have checked/replaced just about everything. It still sounds like a tire balance problem. If you could find another owner who would let you put on his wheels and tires that would answer that question.
I don't think this would have anything to do with it based on your symptoms, but have you had a compression test done?
I don't think this would have anything to do with it based on your symptoms, but have you had a compression test done?
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