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E36 M3 (1995-1999)

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  #1  
Old 09-14-2010, 11:52 PM
AmoneyE36 AmoneyE36 is offline
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Location: Rancho cucamonga
 
Join Date: Sep 2010
Posts: 12
Mein Auto: 98 e36
New member, m3 with seemingly big problems, PLEASE HELP

So how is it going everyone, let me start out by saying hello and that all information givin is 100% appreciated.

Car: 1998 e36 m3
Mileage: 84k

I have this car from a friend who bought it off a guy who tracked it. It was brought to my house and ran fine. It then sat in my driveway for 2 weeks when it was time to move it to my backyard to store it for him. It started right up, but when i barley pressed the gas it would die every time but if you pressed the as harder to about 1500k it would run so thats all i did to get it in my back yard. Today i let it idle for almost 15 mins and the problem seemed to go away it reved just fine without dying. But it needed a oil change so i proceeded to do that for him and i started it back up, it had the same issue it had before, so i started it again and let it idle for 15 mins again to see if it would have the same effect, nope it died as soon as i gave it a touch of gas, so i restarted it reved it to 1500 to keep idle and then all of a sudden it made a sucking noise and completely died, it will crank over but wont start after a compression test it is also reading zero. and now i feel like a horrible friend for seemingly breaking his car..

Cliff notes:
-Car worked
-Car sat for 2 weeks
-would idle but die when given throttle
-let idle for 15 mins, problem solved
-tried same method, failed
-car reved to 1500 and then shut off
-wont start but cranks over
-no compression

im not a bmw guy and i am in a total rutt
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  #2  
Old 09-15-2010, 05:38 AM
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rrsperry rrsperry is offline
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Mein Auto: ///M3 sc
No compression? Did you check the gauge on another car?

If so, then no compression is really bad. (Duh) No compression on all cylinders?
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  #3  
Old 09-15-2010, 10:40 AM
AmoneyE36 AmoneyE36 is offline
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Location: Rancho cucamonga
 
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Mein Auto: 98 e36
Quote:
Originally Posted by rrsperry View Post
No compression? Did you check the gauge on another car?

If so, then no compression is really bad. (Duh) No compression on all cylinders?
only on cylinder 4 i have not checked the rest i will do that tonight
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  #4  
Old 09-15-2010, 08:42 PM
AmoneyE36 AmoneyE36 is offline
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Location: Rancho cucamonga
 
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Mein Auto: 98 e36
So i finished the compression test today with the little light i had left over.

if the cylinder order is 1-6 starting at the front of the engine.
Cylinder 1: 0
Cylinder 2: 150
Cylinder 3: 150
Cylinder 4: 0
Cylinder 5: 0
Cylinder 6: 152

3 of 6 cylinders have compression which means their valves are closing, but i dont know about the other 3
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  #5  
Old 09-17-2010, 08:08 AM
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rrsperry rrsperry is offline
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Mein Auto: ///M3 sc
Screwed... Pull the engine and either fix it or put in a used good engine.

3 cylinders with no compresion is bad. I really bet there are several bent valves, pistons, or broken rings.
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  #6  
Old 09-18-2010, 05:43 AM
snoopybee snoopybee is offline
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Location: Hong Kong
 
Join Date: Jun 2007
Posts: 7
Mein Auto: E36 M3
It's the oxygen sensors

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  #7  
Old 09-18-2010, 09:15 PM
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fun2drive fun2drive is offline
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Mein Auto: 335 vert//M3/4/ 13Outback
The order is correct 1-6 from the front to the back.
Strongly suggest you pull the valve cover to see what things look like.
It makes very little sense you have these compression
I would take some pics of what you see because it sounds like some valves are being left open.
I am assuming you rotated each cylinder to TDC and then read the values.

Also a borescope would be a good thing to borrow if possible and see what the pistons and valves look like.

This is pretty odd and I can only assume that something broke like a cam or timing chain but if so it would not start or make a hell of a racket...
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