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Hyundai XG300 and XG350

2085 messages,  Last post on Aug 27, 2009 at 5:40 PM

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What is this discussion about? Hyundai XG300, Hyundai XG350, Performance Mods, Sedan

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#2036 of 2085 TRY CLEANING INJECTORS by diehardford Nov 14, 2007 (5:04 pm)
My wife"s xg will do the same thing . Hesitate on starts, rough idle louse power tries to stall going down road. Dealer did chemical cleaning of injectors and this cured problem for a short period. I have found that the injectors in this car are very finicky to say the least. About once a month I put a can of injector cleaner in the gas tank. I have found that SEA FOAM from advance auto stores works the best. This stuff is expensive at about 6.50 per can but works a lot better than other brands. Try about 2 tanks and see if this helps Replies to this message: biglar1 (Nov 22, 2007 1:57 pm) shumandu (Nov 27, 2007 10:04 pm) biglar1 (Nov 29, 2007 5:11 am)
#2037 of 2085 Re: TRY CLEANING INJECTORS [diehardford] by biglar1 Nov 22, 2007 (1:57 pm)
Replying to: diehardford (Nov 14, 2007 5:04 pm) Actually had a similar problem, particularly when it rained - erratic idle, skipping, check engine light going on and off, car wanting to stall. It would smooth out once the car warmed up.   The car has three coils, one each on plug wires 2, 4, and 6. I wound up replacing all three over a six-month period, and it fixed the problem. The coils sit at the front of the transverse engine, and the problem would only occur when it was raining and the rain was blowing into the front of the car. I believe the computer codes were 302, 304 and 306. Difficult to diagnose. In each case the coil housing had developed tiny cracks, and water was seeping in. Replies to this message: shumandu (Nov 27, 2007 10:04 pm) biglar1 (Nov 29, 2007 5:11 am)
#2038 of 2085 hello by edmund6 Nov 22, 2007 (4:42 pm)
I have a 2002 XG350L with 168,070 miles ya thats correct 168,070 and the only thing that went wrong was a couple of hoses here and there. With enuff care it will be forgiving even if u beat it up and down twists and turns. All I have to say to all u out there with all these car problems daaaaaaaaaaaa ummmmmmmmm it's called Maintenance you should try it some time!!!!!!!!!!!!!!!!!!!!!! HAHAHAHAHA PITY Couple of things that these odd cars from the pacific rim are known for 1.short 1st/2nd gear for faster acceleration and gas millage all thought it dosent go that fast nor get good gas millige
#2039 of 2085 sport light? by edmund6 Nov 27, 2007 (10:28 am)
I have an xg350l and on the dash next to the cruise control light there is a light that says sport i just noticed it because it never turns on i think it is for when u put it in shifttronic mode but it just blown or something can anyone explain????
#2040 of 2085 Re: TRY CLEANING INJECTORS [biglar1] by shumandu Nov 27, 2007 (10:04 pm)
Replying to: biglar1 (Nov 22, 2007 1:57 pm) Just experienced the same issue under the same conditions with my 2001 XG. The car coded misfire of one cylinder. The plug, wire, and injector were fine. I mentioned your email and they found a cracked ignition coil. I was shocked to learn these coils went for almost $100 bucks each!!! Replacement solved the problem. The alternator went about a month ago, another costly replacement. And I had issues with the accelerator position sensor and throttle body in the past few years. I have some earlier posts on those issues in this forum. While I enjoy driving this car I feel this is way too many issues for the age and low millage (30,000) of this auto. I'm considering trading it in for a new Honda Civic, better gas millage!!!! Replies to this message: biglar1 (Nov 29, 2007 5:11 am)
#2041 of 2085 Re: TRY CLEANING INJECTORS [shumandu] by biglar1 Nov 29, 2007 (5:11 am)
Replying to: shumandu (Nov 27, 2007 10:04 pm) Glad my experience helped to solve your problem. Unfortunately, the coils are expensive, and I wound up replacing all three. I have 88,000 miles on mine, and it's cost me some money in the last year, but it's still enjoyable to drive, and I don't have car payments, so for now I'm going to keep it.
#2042 of 2085 WHAT IS THE CORRECT PART NAME WHEEL COVER by hillfranh Dec 02, 2007 (4:20 pm)
SOMEONE STOLE THE LITTLE COVER WITH XG300 FROM ONE OF MY TIRES WHAT IS THE CORRECT NAME FOR THIS PLATE. CAR IS 2001 XG300 Replies to this message: lucky15 (Dec 30, 2007 1:58 pm)
#2043 of 2085 rattle coming from dash area by lucky15 Dec 16, 2007 (6:10 pm)
I have a 2004 xg350L, which I bought new, the first year everything was fine and then the rattle started, just once in a while at first and then just in the winter time, now it is all the time, more prominent over rough pavement, without taking the dash out I have not been able to locate the noise, it appears to be coming from behind the passengers side air bag compartment, The warranty for something like this is only good for the first year. Has anyone else experienced a rattle similiar to what mine is and in the same approximate location and been able to fix it. Thanks Replies to this message: wcw1 (Jan 08, 2008 7:58 pm) lucky15 (Jan 10, 2008 11:07 am) biglar1 (Jan 14, 2008 6:56 am)
#2044 of 2085 no acceleration on cold start by mudnstf Dec 23, 2007 (7:51 am)
I have a 2002 Hyundia XG 350. Generally speaking a good car. I recently started to have a problem at cold start.   I live in WI and its currently around or below 32 degrees every day. Twice now when I go to start the car it starts and idles at about 2000rpm. Typically when it starts it revs to 2500rpm for a few seconds and then goes down to 1500rpm.   I have no response fromt he accelerator pedal. After it runs for a few minutes and I start and stop it a few times(up to 10) all of a sudden it works normal.   I am thinking its a sensor failing? Any ideas? I have been reading about the throttle position sensor, where is this located and can it be changed easily?   I am a maint mechanic and wrench on my own junk all the time so it shouldn't be a big deal, just looking for pointers. Oh yeah, I dont have a code reader YET:)   Thanks,   mudnstf Replies to this message: whitetop (Dec 27, 2007 5:47 pm)
#2045 of 2085 Re: no acceleration on cold start [mudnstf] by whitetop Dec 27, 2007 (5:47 pm)
Replying to: mudnstf (Dec 23, 2007 7:51 am) I have had a similar problem a couple of times on my 2005 XG. The local dealer kept telling me no one had ever complained about this problem, but I had read many similar complaints on this forum. To make a long story short, Hyundai did finally load a linear motion software fix that has solved the problem for almost a year now.   Meanwhile, I found that during the symptoms you described I could get it to return to normal by some pretty heavy pumping of the accelerator pedal a few times. Eventually the tach started responding. and I was able to drive away.   The car has a "drive-by-wire" system which I think has been a bit troublesome.   Good luck!

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