AWH3

Tonight I went to pick up my 2005 E55 from my mechanic. I had both valve cover gaskets replaced and about 15 miles into the drive home, I noticed the engine was running rough (like it was misfiring) when I came to a stop at the traffic light. By this time, the mechanic's shop was closed and I proceeded to drive the remainder of the way home which was another 10 miles. By the time I got home, the yellow low fuel light next to the gas gauge started to blink, then the dash lit up red indicating that I needed to check my fuel cap. I have to think that the ignition coils and/or plug wires were not properly reattached after the valve covers were replaced. The car also seems to idle high and down shifts abnormally when coming to a stop. All of this happened after the valve cover gaskets were replaced today. Any ideas out there so I can help my indy troubleshoot??
Thanks!

AWH3

...AND the check engine light came on about 10 minutes before the blinking gas light and the red warning message.

Redw20855amg

Sounds like a vacuum leak?

GunMoto

This. Sometimes, the plugs look like they are fully plugged-in but are not. Also check the engine harness plugging into each coil pack.

C3Duece

^^^ this

d613

Pm'ed you AWH3

AWH3

thanks for the responses. Will definitely look into the vacuum leak. Love this forum.

desired_speeds

check the hose that goes into the airbox in the back

berti_00

I bet you its the hose that goes on the back of the supercharger, it's a aluminum It's slides in

Joncl

This can be a coincidence to changing the gaskets but the low fuel indicator blinking and gas cap warning is the indication that either your charcoal canister needs to be changed or the worst thing, change your fuel pumps/senders

E55Greasemonkey

Purge line left disconnected, or more likely the aluminium tube that slides into the SC inlet. Drivers side rear of valve cover gasket...you cant see it youll have to reach doen there and see if its nit slid into the rubber seal.

E55Greasemonkey

Look.under hood around black plastic purge hose/purge valve, drivers side near headlight, it may be disconnected.

viren.89

I had the same problem recently when I got the valve gaskets replace and it was the hose you all guys talking about disconnected.

Another indicator of hose disconnection is that the power goes down in the car cuz you are losing boost.

It felt like when inter cooler pump stops working lol

AWH3

Just got back from the garage where I shared the vacuum leak potential issue. That was, in fact the root cause! The tech removed the intake assembly, simply reattached the purge line, cleared the faults, and now it's back to normal. Happier than a hooker on GI payday!

Can't thank you guys enough!
Adrian

Joncl

Man I'm happy for you my bud had the same symptoms and ended up being the fuel pumps

AWH3

I'm happy too. I'm at 74k miles on the original pumps/ sender and knew it could be the issue too. Glad I get to kick that particular can down the road a bit longer. Thanks for the help Joncl!

Bigtickets

What did your INDY charge you to replace the gaskets??

AWH3

Just under $400 for both L and R VCs. Both gaskets were $50. It was covered under warranty so it could have been less if I was paying cash. I'm in NC, so you may need to adjust price given the my market compared to SoCal, NY, or some other high rent geo.

AWH3

CORRECTION. Referenced the wrong line item. The Indy billed the warranty co $297 for gaskets, sealer, and labor. Labor was billed at $225, remainder was parts.

Redw20855amg

Id charge around $270.50 for the whole job and you'd get a 3 year 36,000 mile warranty.