2011 bmw x5 28i will loose power and vibrate after aggressive acceleration with yellow engine lite on...after stop and a minute or two, engine lite goes off and engine runs like hell.

ROBERT GARCIA

• 926 Answers
• Posted on Apr 20, 2009

SOURCE: Vibration on acceleration

when some vheel missing weight , the vibration begins at 40-45 mph, now if begins at any moment of acceleration ,check inner drive shafts , no outer joints

Dave C

• 1050 Answers
• Posted on May 11, 2009

SOURCE: Buick Regal dying

You have a problem in the fuel pump relay circuit for sure then. I'm betting the relay, but it could be that dropping resistor.

SOURCE: 2000 bmw 321i stalls and lacks power when accelerating

it may be your fuel pump not working properly also check your fuel pump relay

SOURCE: GMC envoy after I filled gas tank the low fuel

You will need to replace the fuel level sensor which is in the fuel tank.They have a lot of problems because the metal fingers on the sensor wear off and gives you the incorrect readings.This will also cause the check engine light to come on.You will probably have a level sensor code.This will be a lot easier if the fuel level is down to about a quarter tank or less.Also you should be able to get just the level sensor and not have to get the complete fuel pump module.Good luck.

SOURCE: Gas tank will not switch and gas runs out of fuel

Hello tlsnyder52: My name is Roger and I will help you. The problem you have is in the fuel select valve. This was a factory recall a few years ago. The recall number is 91S39.What happens is the valve sticks when you switched tanks. This returns all unburnt fuel to the tank you are not using. Basically fills the other tank while the one you are using goes empty. When you fill both tanks the returned fuel has nowhere to go. The fuel has to go somewhere and pushes out the vent. This is not a hard valve to replace. But I would check as if the recall was not performed it may be under warranty recall. The service kit number is F1UZ9B263B and can be obtained from a Ford dealer. Should You need further help please just ask. Please rate the answer. Thank You for using Fix Ya. Roger