NEED HELP ! Weak engine start up ???

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Hookm36
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OK, so I have a 2004 G35 auto, has 50K miles, over the past 3 weeks, I have noticed that when I start up the car (doesnt matter what time of day) that it kind of hesitates to start, the starting sound is weak, not as bold as it was before.............NOW, a buddy of mine has the exact same car, an 04 w/ about same mileage ect......he is experiencing the SAME EXACT problem........I dont know what it is?

we both installed a JWT pop charger and z tube at the same time, but it was back in like September i think......we have not re-oiled the filter, could this have anything to do with it ?

Thank you for your help!


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Sentientbydesign
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Weather, Starter, Spark Plugs, Battery.

The popcharger shouldn't be causing this.

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infinitgkid
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Sentientbydesign wrote:Weather, Starter, Spark Plugs, Battery.

The popcharger shouldn't be causing this.
+1

I'm thinking spark plugs, thats where I'd start when checking...

Good Luck

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telcoman
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Hookm36 wrote:OK, so I have a 2004 G35 auto, has 50K miles, over the past 3 weeks, I have noticed that when I start up the car (doesnt matter what time of day) that it kind of hesitates to start, the starting sound is weak, not as bold as it was before.............NOW, a buddy of mine has the exact same car, an 04 w/ about same mileage ect......he is experiencing the SAME EXACT problem........I dont know what it is?

we both installed a JWT pop charger and z tube at the same time, but it was back in like September i think......we have not re-oiled the filter, could this have anything to do with it ?

Thank you for your help!
If you've got the original battery replace it. Probably a weak cell?

Telcoman

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G_whizz
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infinitgkid wrote:+1

I'm thinking spark plugs, thats where I'd start when checking...

Good Luck
+2

Start with the plugs. How does it idle once it gets going? I am more then positive it's not the popcharger.

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telcoman
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infinitgkid wrote:
+1

I'm thinking spark plugs, thats where I'd start when checking...

Good Luck
Plugs should be good for 100k miles

Telcoman

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G_whizz
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Unless theres an oil leak...

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Hookm36
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Guys, so I just was gonna leave and head back to work.......guess what........CAR WONT START

Its gotta be battery right ?

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Sentientbydesign
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Mostly likely the battery.

But it could be a corroded wire or a short circuit somewhere.

When you turned your car on in the past, did your interior lights dim?

If so, it's definitely the battery.

If your G is stick, you should be able to push it and turn it on, though I've never tried it. If it's an auto, get a jump start and drive it to somewhere to get a new battery (don't turn it off until you get a new battery).

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Still might be time for new sparks plugs...

But yea it is the battery. Now if your car dosn't stay on once it is started... well then you have an alternator problem!

But you can change them out yourself in about 1-2 hrs. they only cost like $100 bux or so!

DJ

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G_whizz
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I agree with the fellas...sounds like a battery.

For the love of God...please don't let a BMW owner see you pushing the G.


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G_whizz wrote:I agree with the fellas...sounds like a battery.

For the love of God...please don't let a BMW owner see you pushing the G.


I can see it now on TV as a BMW advertisement A NICO member pushing his G35 to get it started. BMW owners never have to do that... We just turn a Key

DJ

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Sentientbydesign
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Tampa G35 Sedan 6MT wrote:

I can see it now on TV as a BMW advertisement A NICO member pushing his G35 to get it started. BMW owners never have to do that... We just turn a Key

DJ
I just got "followed" by one of those Bimmer owners. I was driving to the post office to send off some wires and as I signal for a lane change, I see a 5 series coming up fast into the lane I want to be in. He follows me into a turn lane, down the street and when he realises I'm going to the post office, he decides to flip a u-turn and break traction.

I wanted to follow him, but I had better things to do and I'm still breaking in the engine.

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telcoman
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Sentientbydesign wrote:Mostly likely the battery.

But it could be a corroded wire or a short circuit somewhere.

When you turned your car on in the past, did your interior lights dim?

If so, it's definitely the battery.

If your G is stick, you should be able to push it and turn it on, though I've never tried it. If it's an auto, get a jump start and drive it to somewhere to get a new battery (don't turn it off until you get a new battery).
Everyone that drives a stick should give it a try. Next time you are heading down a hill with no traffic pull over to the right & shut off your engine. Place transmission in 2nd gear, turn on ignition & let vehicle begin to roll down hill with your foot on the clutch. At 10 MPH or so let out the clutch & the vehicle will start. With a weak battery always park in a place where its possible to start the vehicle as described above. Also its a good idea to carry jumper cables.

Telcoman

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Hookm36
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took it to the zone....battery is low....gonna add some distilled water to the cells, there was very little in there...

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C-Kwik
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telcoman wrote:
Everyone that drives a stick should give it a try. Next time you are heading down a hill with no traffic pull over to the right & shut off your engine. Place transmission in 2nd gear, turn on ignition & let vehicle begin to roll down hill with your foot on the clutch. At 10 MPH or so let out the clutch & the vehicle will start. With a weak battery always park in a place where its possible to start the vehicle as described above. Also its a good idea to carry jumper cables.

Telcoman
Or buy a emergency starter battery unit. I keep one in the Titan just in case I do something stupid like leaving a light on. Thought, I think I've used it more often to help other people than myself...

WhiteyClay
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I would check fuel pump....just another thing you can check while other stuff dont help....

Jacko3
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G_whizz wrote:I agree with the fellas...sounds like a battery.

For the love of God...please don't let a BMW owner see you pushing the G.

Jacko3
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+1

I agree!

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Yea I thought the water would be low... That is normaly what causes a bat to go bad!.. I should have said something earler but forgot

make sure you use 100% distilled...

DJ

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telcoman
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Hookm36 wrote:took it to the zone....battery is low....gonna add some distilled water to the cells, there was very little in there...
Well if the battery is 4 or more years old, it is possible not all of the cells will accept a full charge?You will need to purchase a battery hydrometer to check the specific gravity of each cell. I believe the full charge reading is around 1280 but it will tell you on the float in the hydrometer. You may very well end up needing to replace your battery because cells without sufficient water for a long period of time are probably near end of life. Battery's tend to fail at the most inoppertune times. Nasty weather, middle of the night, etc.

Telcoman

BrandAidDesignG35
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Battery for sure, I'd get a new one, Good Luck!
G_whizz wrote:I agree with the fellas...sounds like a battery.

For the love of God...please don't let a BMW owner see you pushing the G.
lol

turnitdown
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Boy is that true. My 04 was getting slow on start ups last summer and I put in a grounding wire kit. G started up peppy till this summer, so when I am changing the plugs, I will definetly change the battery.

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kmckis1029
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G_whizz wrote:I agree with the fellas...sounds like a battery.

For the love of God...please don't let a BMW owner see you pushing the G.

TeflonG35
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at 50k It can't hurt to change the plugs anyway.


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