if you use a rubber mallett you'll find hrat shield problems easier. worn engine bearings can be noisy until oil pressure builds.

Answered by merlin2021 (expert)
18,112 answers provided

Your answer has nothing to do with my question. Please re-read my question.

Response from Prodders
1 question asked

sorry that answer was suppsed to go to a different question, obviously! your problem may be due to either a sticking servo piston, or dirt in one of the valves in the valve body, have the transmission fluid changed with th pump station machine as this uses fluid under pressure and cleans the transmission. Also have a look sy engine and transmission mounts. If its more like a bucking feel, check the MAF(mass air flow) srnsor.

Answered by merlin2021 (expert)
18,112 answers provided

Thanks for your reply. I've checked the engine mounts and they are all look in good condition. Not sure how to check the MAF properly, but I tapped the top of it while the eingine was running and the engine didn't miss a beat (I saw this basic test in a video online). I'm now guessing it's a transmission problem so I will head down to an auto specialist tomorrow for them to have a look. Will let you know what the outcome is.
Thanks again :)

Response from Prodders
1 question asked

ok

Answered by merlin2021 (expert)
18,112 answers provided

Hi Simon from Brisbane,

Did you find the answer to your problem? My 2004 Magna has started shuddering around 1500 revs and before I take it to a mechanic I would like to know if I can fix it.

Cheers,

Claire

Answered by claireporter
0 questions asked

Hi Claire,

Unfortunately I haven't been able to locate the problem. I've done 2 transmission services (pressure flushes & oil changes), changed the idle speed controller (idle speed valve), and changed the throttle position sensor, all with no success. It's a very weird symptom and at this stage I just can't afford to keep spending money on it, especially with no results. I'm now thinking it could be something to do with the fuel pump, but can't really afford to get it looked at.

Can you describe your shudder in any greater detail? Does it shudder when you are accelerating or when you take your foot off the accelerator and coast, like my car does?

Cheers
Simon

Response from Prodders
1 question asked

Hi Simon,

My foot is on the accelerator resting to keep it running at the current speed limit (between 60-80). I will lift my foot off lightly when the shuddering starts, then bring it back down which stops it. The shuddering only starts shortly after I have been stationary then accelerated to 60-80k's. On the highway at 110k's it is fine, humming even.
I have it booked into the garage tomorrow morn, fingers crossed he can help me out. Will let you know.

Claire

Answered by claireporter
0 questions asked

Hey Claire,

I'm no mechanic, but two things I think it could be are either a dirty or faulty idle speed valve, or a faulty throttle position sensor. But again, I'm no mechanic or expert, I have just read that those faults can cause problems like that. I hope the garage can find and fix the problem with minimal expense :)
Let me know how you go.
Cheers
Simon

Response from Prodders
1 question asked

Cheers Simon. Took it for a drive this morning with the mechanic who thinks it's the drive shaft. Booked it in for next week so will update if it fixed it or not.
Minimal expense and the Magda do not really bind well. My fingers are crossed too.
Cheerio,

Claire

Answered by claireporter
0 questions asked