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X3 E83 (2004 - 2010)
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  #51  
Old 07-03-2020, 08:28 PM
Tgarret Tgarret is offline
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Ok guys so I replaced the starter ( the old one didn't look that bad and the car now turns over every time but needs gas to actually start... also it iddles weird and now has some kind of hissing sound... when putting back the throttle body the plastic part with a flexible below ( between the throttle body and the air filter box )was hard to push back in I wonder if I didn't push it enough...
Also you guys were right about the bleeder line mine was actually tapped back together with electric tape and barely held together wonder if that was my problem...
Any idea what might be wrong ?
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  #52  
Old 07-03-2020, 08:59 PM
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  #53  
Old 07-03-2020, 09:00 PM
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  #54  
Old 07-04-2020, 04:41 AM
abscate abscate is offline
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With crap work like that you will have go through the whole pcv system and find what the the previous butcher has done.

That massive vacuum leak is like a log inthe Swiss watch of your engine management system
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  #55  
Old 07-04-2020, 05:20 AM
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Slow and random start

I canít imagine you didnít have extreme runtime issues and horrible fuel economy with that. I agree with Abscate, now every thing under the hood is suspect and needs going over. Electrical tape? Pffft, at least use JB weld.

Before tossing the old starter, take it apart so we can see the failure point and the internal carnage!


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  #56  
Old 07-04-2020, 05:45 AM
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Quote:
Originally Posted by dukedkt442 View Post
I agree with Abscate, now every thing under the hood is suspect and needs going over.
Not just under the hood; everything on the vehicle. Time to break out the fine-toothed comb.
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  #57  
Old 07-04-2020, 07:43 AM
Tgarret Tgarret is offline
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Bmw did change the pcv valve they are the last one to have looked at the vehicule either they did that or I suspect they would have replaced that part no ?
Where to start ?
With the symptom I have I was thinking fuel pump relay .
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  #58  
Old 07-04-2020, 07:49 AM
Tgarret Tgarret is offline
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I'll open the old starter up..
In their report Bmw only noted normal oil leaks for that mileage and recommended changing oils pan gasket , valve cover gasket , and oils filter gasket .
I can't imagine that changing the pcv valve they would have overlooked that...
Also I changed the throttle body gasket and intake gaskets but didn't oil them could that be one of the issue ?
I've seen conflicting information on whether or not to oil new gaskets.
What type of oil do you use to oil those if they need to be ?
Also I had a hard time reattaching the air intake boot so I'm wondering if that could be the issue ?
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  #59  
Old 07-04-2020, 07:52 AM
Tgarret Tgarret is offline
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Quote:
Originally Posted by dukedkt442 View Post
I can't imagine you didn't have extreme runtime issues and horrible fuel economy with that. I agree with Abscate, now every thing under the hood is suspect and needs going over. Electrical tape? Pffft, at least use JB weld.

Before tossing the old starter, take it apart so we can see the failure point and the internal carnage!


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Lol no I didn't I had about 20mpg with mountain gravel road city and highway mixed drive and car ran perfectly when it did start I think the poor electrical tape repair only broke down when I disassemble the part .
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  #60  
Old 07-04-2020, 09:00 AM
EvilSideOfGood EvilSideOfGood is offline
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All it takes is a light coat of oil. I even oil the fuel injector o-rings. I'm guessing that you didn't align the intake bellows. Idk if you noticed that there's a notch on the bottom end(check the pic) Or its not fully in. The trick is... wait for it.... oil! So it slides over the bottom one easily. I would do a smoke test for good measure but take the bellows off, oil and put them back.
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  #61  
Old 07-04-2020, 09:02 AM
Tgarret Tgarret is offline
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What type of oil do you use the one used for the engine ?
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  #62  
Old 07-04-2020, 09:04 AM
Tgarret Tgarret is offline
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So just the intake boot or do you oil manifold and throttle body gaskets
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  #63  
Old 07-04-2020, 09:27 AM
EvilSideOfGood EvilSideOfGood is offline
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Just the regular engine oil. Almost every o-ring.
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  #64  
Old 07-04-2020, 10:21 AM
Tgarret Tgarret is offline
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K cool will do that also any idea about the crank but no start if I don't push the gas ?
Fuel pump relay ?
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  #65  
Old 07-04-2020, 03:47 PM
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Pushing the gas pedal down is classic ďflooded engine clearĒ command, as it turns off the fuel.

Do you always need to do that, or just the first time trying to start the car after the starter replacement? Do you turn the car on and off quickly and find you then need to depress the pedal?


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1984 GMC S-15 1986 Oldsmobile 442
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  #66  
Old 07-04-2020, 03:57 PM
Tgarret Tgarret is offline
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I needed to do that after the starter replacement every time I tried to stat the car ( but I havenít driven the car yet
I reopened everything applied a bit of oil on the gaskets and making sure Iím tightening to the correct torque values
Iíll update when Iím done
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  #67  
Old 07-04-2020, 08:30 PM
Tgarret Tgarret is offline
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Hey guys so redid everything and put some oil on the gasket and torqued to specs
Still need to pump gas to start and get a hissing sound at low rpm
At first after restarting I could only go backwards trying to go forward would just not give enough power to move forward but then after driving 800 feet backward o was able to go forward but the car started hissing...and at low rpm it seems like the engine is not super stable ( rpm goes a little bit up and down nothing huge but noticeable )
Any idea ?
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  #68  
Old 07-04-2020, 08:31 PM
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  #69  
Old 07-04-2020, 08:32 PM
Tgarret Tgarret is offline
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And the hissing
It's the loudest in when listening from the front wheels and below the car
I removed the plates under the car and will be putting them back
But I doubt it's related..

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  #70  
Old 07-04-2020, 09:18 PM
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Iíd wager you accidentally jostled some other hacked connection and have a massive vacuum leak somewhere. If you have a scanner post your fuel trims.


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The "need to have my head examined " E21 build thread

2008 BMW E83 1981 BMW 320i
2016 Chevy Silverado 2011 VW Jetta
1984 GMC S-15 1986 Oldsmobile 442
Another half dozen '60s tractors
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  #71  
Old 07-05-2020, 07:51 AM
EvilSideOfGood EvilSideOfGood is offline
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You need a BMW specific diagnostic tool to see why your CEL is on.
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  #72  
Old 07-05-2020, 09:54 AM
Tgarret Tgarret is offline
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A few updates :
Actually I'm not sure giving gas makes a difference it just seems that the car will always start after cranking for about 6-10seconds
Definitely have some vacuum leak no more hissing but the engine rev weird
Here are the reports from the OBD reader
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  #73  
Old 07-05-2020, 12:48 PM
Tgarret Tgarret is offline
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I'm thinking I might not have torqued the manifold correctly it's a little confusing on Tis is says 22nm (16.2ft-lb) but on other documentation it says 11ft-lb ...

https://www.newtis.info/tisv2/a/en/e...nifold/5loX5pc

https://www.e90post.com/forums/attac...7&d=1516042717

Last edited by Tgarret; 07-05-2020 at 12:57 PM.
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  #74  
Old 07-05-2020, 01:42 PM
EvilSideOfGood EvilSideOfGood is offline
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Make a homemade smoke machine and do a smoke test while the manifold is already in there. Find the vacuum leak. Then check your crankshaft position sensor and its connections. Dysfunctional crankshaft sensor will cause starting issues.
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  #75  
Old 07-05-2020, 03:37 PM
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STFT of nearly 30%??? No wonder it is hard to start!

Thatís like more than a leak, thatís like something isnít even connected. IIRC thereís a hose attached to the back of the rocker cover that easily comes loose.


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The "need to have my head examined " E21 build thread

2008 BMW E83 1981 BMW 320i
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1984 GMC S-15 1986 Oldsmobile 442
Another half dozen '60s tractors
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