"studder" on acceleration
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I've got a 2005 SRT6 with 170,000 miles--and its been a great car. For the last 10,000 miles, I've noticed a vibration or "studder" from the powertrain when accelerating or going uphill (under load) around 35-40 mph....and also 65-75mph. Seems to be coming from the engine--slight loss of power.
I've check the tires and differential for vibrations, also fuel filters were changed, replaced the plugs/wires and also removed the exhaust to check for reduced back pressure. Everything is fine and no codes come up.
This studdering happens in any gear, 1st/2nd/etc. and air cond on or off, also no differences in summer or winter temps/humidity.....same problem.
Anyone out there have any ideas what might be causing this?
I've check the tires and differential for vibrations, also fuel filters were changed, replaced the plugs/wires and also removed the exhaust to check for reduced back pressure. Everything is fine and no codes come up.
This studdering happens in any gear, 1st/2nd/etc. and air cond on or off, also no differences in summer or winter temps/humidity.....same problem.
Anyone out there have any ideas what might be causing this?
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Originally Posted by DeltaNine
I've got a 2005 SRT6 with 170,000 miles--and its been a great car. For the last 10,000 miles, I've noticed a vibration or "studder" from the powertrain when accelerating or going uphill (under load) around 35-40 mph....and also 65-75mph. Seems to be coming from the engine--slight loss of power.
I've check the tires and differential for vibrations, also fuel filters were changed, replaced the plugs/wires and also removed the exhaust to check for reduced back pressure. Everything is fine and no codes come up.
This studdering happens in any gear, 1st/2nd/etc. and air cond on or off, also no differences in summer or winter temps/humidity.....same problem.
Anyone out there have any ideas what might be causing this?
I've check the tires and differential for vibrations, also fuel filters were changed, replaced the plugs/wires and also removed the exhaust to check for reduced back pressure. Everything is fine and no codes come up.
This studdering happens in any gear, 1st/2nd/etc. and air cond on or off, also no differences in summer or winter temps/humidity.....same problem.
Anyone out there have any ideas what might be causing this?
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Originally Posted by hcarter
Almost sounds like the carrier bearing on the drive line vibrating under load ,,,, ![Confused](https://www.crossfireforum.org/forum/images/smilies/confused.gif)
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Originally Posted by DeltaNine
I changed the intercooler pump at about 60,000 miles.........the carrier bearing sounds like a possibllity......yeah, actually got 170,043 miles as of today..........still runs strong.
TPS....Throttle Position Switch???
CPS....what this?
TPS....Throttle Position Switch???
CPS....what this?
CPS = Crank Position Sensor.
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I had a surging/shudder under hard accerlation too. Had a stored fault code for the hight pressure airpump. That was changed and seemed to work fine.
Note: Talking with tech he said he has to contact Detroit to read fault codes. He also said the codes are more detailed them other Chry.
Note: Talking with tech he said he has to contact Detroit to read fault codes. He also said the codes are more detailed them other Chry.
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here's an update on my 170,000 mile SRT6 with the "Shudder" problem.........
.....the shuddering seems to happen mainly on light or gradual acceleration....whether at low speeds or highway speeds---in any gear. When I accelerate hard, it feels smooth and normal--almost no vibration.
Sometimes I'm convinced that it is a driveline problem, other times it feels like an engine mis-fire.........think I'm going to contact these Needswings guys.........
.....the shuddering seems to happen mainly on light or gradual acceleration....whether at low speeds or highway speeds---in any gear. When I accelerate hard, it feels smooth and normal--almost no vibration.
Sometimes I'm convinced that it is a driveline problem, other times it feels like an engine mis-fire.........think I'm going to contact these Needswings guys.........
![Default](https://www.crossfireforum.org/forum/images/icons/icon1.gif)
Originally Posted by DeltaNine
here's an update on my 170,000 mile SRT6 with the "Shudder" problem.........
.....the shuddering seems to happen mainly on light or gradual acceleration....whether at low speeds or highway speeds---in any gear. When I accelerate hard, it feels smooth and normal--almost no vibration.
Sometimes I'm convinced that it is a driveline problem, other times it feels like an engine mis-fire.........think I'm going to contact these Needswings guys.........
.....the shuddering seems to happen mainly on light or gradual acceleration....whether at low speeds or highway speeds---in any gear. When I accelerate hard, it feels smooth and normal--almost no vibration.
Sometimes I'm convinced that it is a driveline problem, other times it feels like an engine mis-fire.........think I'm going to contact these Needswings guys.........
On another note...Rob (NeedsWings) is a great guy and he has some amazing products, I'm sure he can help you out (just make sure to post up results!!!). Make sure to check out some of his products/parts while you are there!
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