AU II I6 vibrating and exhaust popping at idle

[horseman98]

my car has being vibrated with the exhaust popping at idle. There is no power loss during driving. No rough idle.

The interesting thing is that all the problems have gone when I push the accelerator slightly or turn on the air conditioner. It gets better even when I open the headlight.

I have done the following jobs and nothing is changed
1. changing all 6 spark plugs
2. changing the air filter
3. cleaning the throttle body

Any advice would be welcome. Thanks

[Day-mow]

how many km on the car?

exhaust popping i would think maybe a leak or a hole in it? mine pops on decelleration. but thats normal.

[horseman98]

Originally Posted by Day-mow

how many km on the car?

exhaust popping i would think maybe a leak or a hole in it? mine pops on decelleration. but thats normal.

Thanks mate

226,000 Km now

I will check with the exhaust this weekend.

[Day-mow]

whats fuel economy like? i know blocked cats can cause issue's if you have a standard cat in its probably getting there.

[horseman98]

Originally Posted by Day-mow

whats fuel economy like? i know blocked cats can cause issue's if you have a standard cat in its probably getting there.

Fuel consumption is normal. No obviously increase.

[Day-mow]

probably not the cat then. hmm sounds strange. i guess just check all intake pipe joins and make sure their not leaking. and check out the exhaust side of things as well. look for holes or leaks.

[mongrelEF]

Sounds a bit lean.....
Grab a can of degreaser and, one at a time, spray every joint in the intake setup. Any increase in revs will indicate an air leak.

What colour/smell is your exhaust?

[horseman98]

Originally Posted by mongrelEF

Sounds a bit lean.....
Grab a can of degreaser and, one at a time, spray every joint in the intake setup. Any increase in revs will indicate an air leak.

What colour/smell is your exhaust?

Thanks.

I will do this job this afternoon if I have time.

Smell and colour look like normal except popping at idle.

[horseman98]

Originally Posted by mongrelEF

Sounds a bit lean.....
Grab a can of degreaser and, one at a time, spray every joint in the intake setup. Any increase in revs will indicate an air leak.

What colour/smell is your exhaust?

That is it.

I sprayed throttle body cleaner onto the intake gasket.
The car vibrated hardly when I sprayed the first and second parts of the gasket. Then The car kept running like normal. A little while the problems came back

I will change the gasket this weekend. But I noticed that the bolts on the bottom of the gasket were very difficult to reach. Any special tools should I take to undo and tight these bolts. Thanks

[Beer Baron]

Ratchet spanners.

[Day-mow]

^ +1 for that. they're pretty handy on such jobs

[horseman98]

Replacing the gasket has been done this morning. I feel good though it was a pain job. She runs pretty good now.

Thanks for your help.

[mongrelEF]

Glad to help!