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XG350

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Question
Q: Car stalls when starting
Hello, I am assuming that you have a reoccurring code for a crankshaft sensor. The connector for the sensor should be checked for corrosion and pin tightness. The wiring should be checked between the crankshaft sensor connector and the engine...
Question
Car stalls and P0401 insufficient egr flow
The P0401 code is for low EGR flow, but would not be the cause of the stalling if the flow was too low. You also state the problem is when the engine is cold and goes away after it is...
Question
No pickup power, shifting gear problems, hose loose
After reading all the different issues and problems you are having and the air intake problems that you are mentioning, I suggest having a mechanic do a thorough check and diagnosis of your shifting issues to see if there are...
Question
Door ajar light stays on
You should have a mechanic scan and diagnose the body computer to see what door is causing the light to stay on. If the aftermarket alarm is the cause, then it would need to be checked by disconnecting it to...
Question
Engine knocking, oil light on, engine quit
If you ran the engine out of oil until the engine quit or locked up, then you tried to add oil after the damage was already done. The engine bearings will need oil to work properly, and when you ran...
Question
After oil change informed that engine was leaking from valve gasket cover.
Valve cover gasket leaks are located by visual inspection and are usually one of the easier leaks to confirm the source of, since they are high up on the engine. It would't hurt to wash it off, especially if it's...
Question
Can't get a full tank of gas without pump stopping
The fuel tank venting system is plugged or blocked in some way. There is a two-way valve and a canister close valve that can cause the fuel tank to not get vented during fill up. Have these inspected and checked...
Question
Q: Car isn't cranking
It sounds like you may have a problem with the battery cables. Check the ends by the battery thoroughly, especially if they have been replaced by universal ones. The main ground cable runs with the starter positive cable and is...
Question
Starter not cranking the engine
If your starter is clicking and spinning, and unable to turn the engine, it is likely that the starter has failed. It sounds like either the gear has become worn, the the point where it no longer contacts the flex...
Question
Wheel well guard rubbing against tire
It's possible that there is damage that is unnoticed behind the wheel or something may be loose, which is causing the shaking while driving. It could also just be that a wheel weight fell off. Either way, I would recommend...
Question
A leak from power steering pressure line hose
Hello. If that other hose is leaking then it will need to be replaced also. If the section of hose that is leaking is the metal line then that can usually only be purchased at the dealer. This line is...
Question
Hi, I am hearing a very loud "rolling thunder" noise while driving that gets louder at higher speeds.. What could be the issue?
Hello. There are several components that will cause these noises when accelerating. Typically they are related to the exhaust system. You may be experiencing an exhaust leak for one option. This can occur when a hole has found its way...
Question
My car will start but will only run for a certain amount of time before the engine shuts off. Then it won't start. Why?
Hi there. In many cases, when the car will start but quickly stall, it's due to either a reduction in fuel flow (caused by a worn out fuel pump, dirty fuel filter or clogged or dirty fuel injectors or the...
Question
Can an overheated engine cause my car to not drive ?
A blown head gasket may cause a number of different symptoms. A head gasket that fails between cylinders will generally cause a misfire and potentially compression leaks from one cylinder into another. Low compression will eventually result in a rough...
Question
Where is the relay flasher located in the 2002 Hyundai XG350
Hello -both the flasher unit and the relay for it are close to each other, and under the dash just left of the steering column. The knee crash pad will need to be removed to make it easier to get...
Question
How do I fix this? 2002 Hyundai xg350 Transmission Control Relay Always On: I replaced the TCM, no fuses are blown. Still broken.
The only way to fix this issue is to go through the test protocol (diagnostic decision tree) in the Hyundai factory service manual. In particular, for this code (P1723) the circuit to and from the module has to be tested...

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