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V8-4.4L

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Q: Rough idling
Rough idle can be due to a bad tank of gasoline, dirty fuel injectors, incorrect idle speed, exhaust restrictions, vacuum leaks, incorrectly installed or damaged spark plugs, a defective or clogged fuel pump or fuel filter, failing electrical components such...
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A.c. and heat blowers
The blower motor inside center of dash is most likely the problem and requires the instrument panel to be removed. This is a major repair and requires air bags to be removed on passenger side and dash top panel to...
Question
Engine misfire
by many different problems and are generally caused by either a spark or fuel issue or in some cases, a combination of both. Spark related problems generally will result from things like ignition coils, crankshaft position sensor, spark plugs, spark...
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I have a 03 BMW 745i I was running fine untell I park it over night an when I wake up to start the car it crank put don't start
Hi Tevin. Thanks for contacting us tonight. If you can engage the starter (meaning it cranks over) but will not start, then it's either a fuel or ignition system failure. Some of the common components that can cause this include...
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2005 BMW X5 shut off, replaced battery went to turn on, lights, radio work but when try to start car alarm goes off
It sounds like you may need to have the battery programmed to your vehicle which is common on the BMW model vehicles. I would suggest scheduling an appointment to have one of our service technicians to come to your location...
Question
TIMING CHAIN BREAKS IN A 740IL WILL IT BEAN A VAILS
Hi Curtiss. Thanks for submitting your question. I'm not quite certain what to advise, but generally speaking, when a timing chain breaks, it typically causes significant internal engine damage. Although these issues can be fixed, it is typically more cost-effective...
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I was driving and my raidiator busted and my car shut down and It won’t start
Lending cars, Whew! it never turns out well. Its hard to imagine all those things going at once. The only scenario I can come up with is that the serpentine belt may have failed, possibly damaging the radiator, but also...
Question
2001 BMW 740il fuel pump replacement
If the pump has failed, depending on the failure mode of the pump, you can diagnose the fuel pump yourself. Turn the key to the ignition (run) position. At that instant, you should hear a momentary whirring noise from the...
Question
Car idling rough after replacing alternator
After replacing the alternator, your vehicle's ECM will need to go through a "relearning" process whereby it will take a day or two for it to relearn the computer's parameters and adjust. If by replacing the alternator, the battery was...
Question
P0505 code Idle Air Control for bmw 540i
The TPS can have between 5 and 10 different codes and all will be caused by different failures of the TPS, Throttle body, wiring or computer issues and you will need to supply the code you get to help you...
Question
How do i turn on the heated seats in a 2005 bmw 545i ?
Hi Travis. Thanks for sending your question to us tonight. You can find the instructions for turning on your heated seats by reviewing the owner manual. You can also click this link to access the manual online.
Question
Car battery
I would recommend checking in your vehicle's owner's manual. The owner's manual will give you information related to which type of batteries will work for your vehicle and which types will not. You could also try calling your local dealership...
Question
Yesterday while back from a long drive i pulled into a mcdonalds. While turning the corner after ordering my truck seemed stuck an
Check the brakes for failure to retract, the wheel bearing and the axle. If there is no fault in any of those components, obviously the issues lies in the differential and/or transmission. If you want the origin precisely pinpointed, the...
Question
Smoking from under the hood
The smoke could be from leaking oil that is dripping on a hot engine part, such as the exhaust manifold, and then vaporizing. An antifreeze leak is also a possibility. To resolve this, on a mobile basis, right at your...
Question
Battery Light/Running High Cooling Fan
There are no consumer complaints in the NHTSA database for your year, make and model relative to this issue of the battery light and the alternator. Furthermore, the only TSB (technical service bulletin) that is even close relates to alternator...
Question
Water leaking from pillar sunroof drain into passenger footwell
Yes, diagnosing the leak and implementing the required repairs is no problem and is a fully covered service. To request that service, you can schedule via YourMechanic's leak diagnostic service page. If the drain tube is readily accessible, I can't...
Question
Radio in BMW X5 is nonfunctional and LCD opens to Menu with on-board computer being the first selection,. Just want the radio on.
This is an electrical fault that is pinpointed using the BMW Service Manual. I checked the Technical Service Bulletins for your model and year and there is nothing that refers to this issue in particular (i.e., radio failure is not...
Question
I have a 2001 BMW 740il and I'm trying to know for sure if it's really the motor mounts that need replaced.
The only way to really check motor mount condition is to do a visual check of mounts and also look at motor movement when putting in drive and reverse to see if motor moves too much when power braking engine....
Question
Q: Car won't start
Hi Denise. Thanks for contacting us today. Typically, when you turn the key and get the clicking sound, it's due to one of three possible issues. Either the battery does not have enough cranking amps or cables are loose, an...
Question
When I reverse loud banging from rear differential and grinding noises
You may have broken mounts or damaged rear differential and would need to have vehicle on a lift to inspect for damages and may need the mounts replaced.

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