E34 idle problems

[sacho]

My 95 just started running at a rough idle, slight pinging and whining or whistling sound. Also emits med grey smoke on initial start up and for about 2 miles. Is it fuel pump, vacuum leak or fuel pump. anyone?

[Brodee]

Not to scare you, but do you know about the V8 engine issues?

Read here if you don't (http://www.koalamotorsport.com/article-m60v8.asp)

Since you mention a whistling sound I would guess you have a vacuum leak somewhere. Get a can of carb cleaner and gently spray it around the vacuum lines and intake. If the engine speeds up at any time then there is a vacuum leak there that is sucking in the carb cleaner.

hopefully that's all that is wrong, but vacuum leaks don't usually cause smoke :(

[323I Junkie]

vaccuum leak affecting fuel pressure regulator. Any MAF car will act terribly when its got a vaccuum leak though, so its hard to say

[sdwhitney]

Nikasil....

Go get a leakdown.....

[The Beastmaster]

Nikasil....

Go get a leakdown.....
Exactly! Unfortunately, your car is past the warranty period, but if you have been taking your car to the dealer religiously, they might help you with this.

[sacho]

My mechanic diagnosed the problem, I hope- Faulty oil seperator, torn seal creating smoke and vacuum problems.