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Showing results 1 to 25 of 338
Search took 0.05 seconds. Search: Posts Made By: jac
Forum: X5 (E53) Forum 06-02-2026, 11:10 AM
Replies: 51
Views: 4,897
Posted By jac
I am back! A couple of updates: The...

I am back!

A couple of updates:


The car is now 25 years old, so the DMV no longer requires an inspection on it, so I was able to get it registered and am able to resume working on it...
Forum: X5 (E53) Forum 06-02-2026, 10:50 AM
Replies: 19
Views: 1,589
Posted By jac
I have around 10 airbag codes which I have yet to...

I have around 10 airbag codes which I have yet to find a way to make go away. I have tried INPA and BMW Scanner v1.4. Both try to clear them but fail to do so.

Anyone in DFW area that has a...
Forum: X5 (E53) Forum 02-19-2026, 03:16 PM
Replies: 10
Views: 896
Posted By jac
Mine has no DSP and no subwoofer. What does the...

Mine has no DSP and no subwoofer. What does the connector look-like so I can check for you?
Forum: X5 (E53) Forum 12-29-2025, 03:11 PM
Replies: 51
Views: 4,897
Posted By jac
Sorry for the lack of updates. I have not made...

Sorry for the lack of updates. I have not made any progress on it and I also have not been driving it.

As my luck would have it, the vehicle state registration on it expired and so I am not able...
Forum: X5 (E53) Forum 11-24-2025, 10:46 PM
Replies: 51
Views: 4,897
Posted By jac
Thanks for continuing to help! The misfires only...

Thanks for continuing to help! The misfires only show up when driving it hard. If I drive it normal, the misfires don't happen, but instead the gear shifting is a bit delayed than normal and so the...
Forum: X5 (E53) Forum 11-24-2025, 10:09 PM
Replies: 51
Views: 4,897
Posted By jac
Ok, I reset the codes, cleared all the adaptions...

Ok, I reset the codes, cleared all the adaptions and went for a ride to warm up the engine and test out the MAF theory.

To start with, the car threw the below codes while doing the hard...
Forum: X5 (E53) Forum 11-21-2025, 02:42 PM
Replies: 149
Views: 13,434
Posted By jac
There's a locksmith that can do this on site for...

There's a locksmith that can do this on site for you. I have used his services to cut the keys.

Nice guy, he's in Richardson: https://maps.app.goo.gl/EdwCP8gd51cmcNbk9
Forum: X5 (E53) Forum 11-20-2025, 01:49 PM
Replies: 51
Views: 4,897
Posted By jac
Well, the weather isn't cooperating today. Gonna...

Well, the weather isn't cooperating today. Gonna have to wait until Saturday ��
Forum: X5 (E53) Forum 11-20-2025, 01:43 PM
Replies: 149
Views: 13,434
Posted By jac
I am in DFW and I have a programmer for the keys....

I am in DFW and I have a programmer for the keys. You can borrow the thing and do it. It does require you to remove the EWS from the vehicle.
Forum: X5 (E53) Forum 11-19-2025, 11:31 PM
Replies: 51
Views: 4,897
Posted By jac
I will do the compression test with the hot...

I will do the compression test with the hot engine in the morning as right now I don't have a helper to do it.

BTW, after the test drive, I was reading some more about the vacuum tests on the...
Forum: X5 (E53) Forum 11-19-2025, 11:08 PM
Replies: 51
Views: 4,897
Posted By jac
The first time you posted it said "with cylinder...

The first time you posted it said "with cylinder fuel cut" but I think the actual code is the same so probably still has the "cylinder fuel cut."
Ah, yes. Sorry about that. Indeed the description...
Forum: X5 (E53) Forum 11-19-2025, 09:53 PM
Replies: 51
Views: 4,897
Posted By jac
I assume fuel is getting shut off to all 3 ? I...

I assume fuel is getting shut off to all 3 ?
I don't know. How can I determine if that is the case?

Was it fine until the hard driving?
Sort of, it did feel a bit off (some gears would not...
Forum: X5 (E53) Forum 11-19-2025, 08:26 PM
Replies: 51
Views: 4,897
Posted By jac
Ok, I installed the new spark plugs (NGK BKR6EIX)...

Ok, I installed the new spark plugs (NGK BKR6EIX) and went for a ride.

After some hard acceleration, the ECU now throws codes for cylinders 4, 5 and 6. :(

Once the errors are thrown the engine...
Forum: X5 (E53) Forum 11-18-2025, 04:25 PM
Replies: 51
Views: 4,897
Posted By jac
Spark plugs on order. Yes, the ones on there now...

Spark plugs on order. Yes, the ones on there now have four prongs, but I ordered the BKR6EIX this time (which has a single prong).

I also had ordered a proper smoke test machine. It arrived...
Forum: X5 (E53) Forum 11-17-2025, 10:37 AM
Replies: 51
Views: 4,897
Posted By jac
Thanks. I left the pressure on there, with...

Thanks.

I left the pressure on there, with the spark plugs out, since yesterday afternoon until this morning. I used a boroscope to look into the cylinder/pistons a few times throughout and saw...
Forum: X5 (E53) Forum 11-16-2025, 04:40 PM
Replies: 51
Views: 4,897
Posted By jac
I just did the cooling system pressure test. ...

I just did the cooling system pressure test. Connected the hand pump and applied 15 psi to the system. It has held that pressure so far for the last 30 minutes.

Edit: 2 hours later, it is still...
Forum: X5 (E53) Forum 11-13-2025, 04:52 PM
Replies: 51
Views: 4,897
Posted By jac
Thanks folks. You are awesome! The trifecta...

Thanks folks. You are awesome!

The trifecta will appear if battery voltage gets too low or battery is disconnected
. Thanks. After driving for a few seconds, that trifecta changes. It goes to...
Forum: X5 (E53) Forum 11-11-2025, 05:35 PM
Replies: 51
Views: 4,897
Posted By jac
I cleared all the codes and adaptations using...

I cleared all the codes and adaptations using INPA, and left the car running in the driveway for like 45 minutes.

I was in the car for those 45 minutes, trying to find out how to log RPM, throttle...
Forum: X5 (E53) Forum 11-09-2025, 05:10 PM
Replies: 51
Views: 4,897
Posted By jac
Thank you all. I did measure the resistance on...

Thank you all. I did measure the resistance on the 6 injectors:

Injectors 1, 5, 6: 11.8 ohms
Injectors 2, 3, 4: 11.7 ohms

I just swapped injectors 2 & 5. Going for a ride.

The compression...
Forum: X5 (E53) Forum 11-08-2025, 05:21 PM
Replies: 51
Views: 4,897
Posted By jac
I was able to run the cylinder compression test...

I was able to run the cylinder compression test while the engine was at operating temperature:

Cylinders 1, 2, 4, 5: 160
Cylinders 3 and 6: 170

Those are decent readings, right?

Also,...
Forum: X5 (E53) Forum 10-06-2025, 11:07 PM
Replies: 51
Views: 4,897
Posted By jac
Thank you. Will try that when I get back. I...

Thank you. Will try that when I get back.

I am going to be away for a few weeks so there won't be any updates on this for a while.
Forum: X5 (E53) Forum 09-29-2025, 10:05 PM
Replies: 51
Views: 4,897
Posted By jac
I swapped coils and spark plugs but the misfire...

I swapped coils and spark plugs but the misfire remains on cylinders 5 & 4. :-(

Also did the "cigar" smoke test at night and saw nothing escaping. But, it is difficult to tell, so yeah, I am going...
Forum: X5 (E53) Forum 09-28-2025, 06:01 PM
Replies: 51
Views: 4,897
Posted By jac
I did the smoke test (using a cigar), and did not...

I did the smoke test (using a cigar), and did not see any smoke escaping anywhere.

However, I do see that the system does not hold pressure very long (whatever pressure I can manage to apply with...
Forum: X5 (E53) Forum 09-28-2025, 05:53 PM
Replies: 51
Views: 4,897
Posted By jac
Thank you, great idea! I just checked them all. ...

Thank you, great idea! I just checked them all. Not a ton of difference between them all. #4 did have a bit of oil on it. Photos below.



No, not overheating at all. If I don't accelerate...
Forum: X5 (E53) Forum 09-28-2025, 03:41 PM
Replies: 51
Views: 4,897
Posted By jac
Ok. I swapped coils #1 and #5 and installed a...

Ok. I swapped coils #1 and #5 and installed a new air filter. Cleared the codes (but forgot to clear adaptations). The mysfires on cylinder #5 and #4 returned, along with a new DME failure:

F6...
Showing results 1 to 25 of 338
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