starting hesitation

[DRIPS]

I have been loving my new M45. I have noticed that 4 out of 5 times the car has a bit of hesitation starting. It will bumble at 0 rpms almost stalling and then pick up to idle.

The car runs completely beautiful and I have noticed no other symptoms. Could it be spark plugs? could it be something with excess fuel entering the cylinders after shutting down the engine? Any ideas? Any one experience this?

[MagicM]

SOunds like a throttle sensor.

[DRIPS]

Is the throttle sensor the same as the Camshaft Position sensor? Does this m have a Camshaft sensor?

[GNR4ALL]

Im having the same problem for the first time this week my car actually stalled on me. anyone have this problem or know what it is?

[szh]

I think this is one of the symptoms of excessive carbon deposits ...

Try a session with BG-44K. I know it seems like I plug this a lot, but it has a remarkable positive effect on many of these funny engine problems!

Z

[GNR4ALL]

thanx alot ill try that and keep u guys posted

[akliquid]

I have the same problem with my car, and I did a session with BG-44K about 5 months ago. I notice that this problem occurs more often when the engine is warm, and I start the car after 15 - 20 minutes of shutting it off. The car doesn't stall, but it sputters for about 30 seconds before it idles normally. I have spoken to the dealer twice about this problem, but they didn't do anything because they could not get the symptoms to repeat. On the last visit to the dealer, they reset the idle, but this did not fix the problem. Anyone have any ideas. Thanks.

[GNR4ALL]

I have the same problem with my car, and I did a session with BG-44K about 5 months ago. I notice that this problem occurs more often when the engine is warm, and I start the car after 15 - 20 minutes of shutting it off. The car doesn't stall, but it sputters for about 30 seconds before it idles normally. I have spoken to the dealer twice about this problem, but they didn't do anything because they could not get the symptoms to repeat. On the last visit to the dealer, they reset the idle, but this did not fix the problem. Anyone have any ideas. Thanks.

same exact thing by me, happens when i shut the ingine off when its warm then turn on my car again shortly after. What the **** is wrong with it

[Mark Linkous]

Hello,The one thing that I would add is maybe the battery is the culprit on hesitation starts. Before I swapped out my battery, my car would not always start instantly. Since I got a new one, instant. With colder weather invading most climes, I would check out the battery as well as all described above.Cheers,M.L

[DRIPS]

Ya I do not think it is my battery. I agree with the problem usually happening once the engine is warm after about 20 mins....

NO IDEA what it could be...I guess we will just have to deal with this for now!

[foxracer981]

So I am just curious if any one has had any luck fixing this problem. It's really starting to annoy me.

[saeedakobiakov]

to all of you that have this problem.how many miles you all got on the cars?just would like to compare, to see if it has to do anything at certain mileage on the cars?i hope you understand what i am trying to say.i think something has to do with wiring/coil pack. if there is such a thing on this car.caug.

[DRIPS]

61000k-- 2003 m45

[akliquid]

04 - 62,000 miles

[foxracer981]

03 with 60k miles. I just ran a full can of sea foam through a full tank and it quit doing it. I guess i answered my own question. Hopefully that will help some one else. I have used it before and it's great stuff and its only about $7.

[nmgoodthing]

What's seafoam?

[foxracer981]

http://www.seafoamsales.com/products.htm

you can get it at an autozone or advanced

[foxracer981]

http://www.seafoamsales.com/motorTuneUpTechGas.htm

heres the actual link sorry.

[CakeDaddy]

Seafoam! I wouldn't recommend putting this in these highly sophisticated engines. You are risking some serious sensor malfunction. I’ve used it in lawn mowers and weed eaters with little to no change. It creates the illusion with all that smoke coming from the exhaust that it is cleaning the engine. I used it in my old Ack Legend and didn’t notice any difference at all. Just a bunch of odd smoke and pissed off neighbors. ;( This is just my opinion on this stuff, so spare me the rebuttal.

DRIPS,

Un hook your battery terminals for 10-15 minutes

[foxracer981]

Oh well it fixed my problem and an engine is an engine. If you knew how to rebuild them and all the aspects of one then you might be able to talk. Anyways its sensor friendly. All it does is clean out the injectors and breaks loose some of the carbon build up on the pistons due to the egr valve for pollution reasons.

[szh]

I still say: "try BG-44K first" before you all do much more to the engine ...

Z

[DRIPS]

How did you do it? Just pour it into a full tank of gas? IN the gas tank? what are the directions...wait time etc.
Modified by DRIPS at 5:21 PM 2/21/2008

[foxracer981]

usually I let it get sucked in through a vacuum line in the manifold but i didnt want to go that far with it yet. So yes all i did was use a full can with a complete fill up. Ran the tank till dead empty and about half a tank through it quit doing it and the weather stayed the same so that wasnt a variable.

[xerexabante]

I used seafoam on my civic before. I bought that car and ran like crap, not much power. I did the seafoam through the vacum hose. After a couple of days the ran smooth, with more power. I then sold the car to an old lady and she even got a speeding ticket on that thing.

[CakeDaddy]

I think this is one of the symptoms of excessive carbon deposits ...

Try a session with BG-44K. I know it seems like I plug this a lot, but it has a remarkable positive effect on many of these funny engine problems!

Z

I'd much rather see people use this for the simple fact that it is dealer recommended. I’d be curious to hear what a service rep would say about seafoam in these cars. Sorry, but I’m too embarrassed to call and ask my service people. just clowning

[tedmarley100]

Sup talk with anybody that has a shop and see whether the car has a tsb(technical service bulleting) also known as recalls. It could save you some money and the dealership will pay for the tab.

[DRIPS]

I have a full can of seafoam in my gastank and I am close to half way through with no noticable results YET. I am optimistic.

I am considering doing the seafoam through the vacuum hose....can anyone guide me to where that line is under the hood? I have no idea....

[xerexabante]

I used the vacum hose on the brake booster on my Civic. Has your car had the CAS repleced yet? How many miles do you have on your car? ECU, Emisions are 8/80k warranty. 5/50k miles bumper to bumper.

[titaniumleg]

so far this is the only post I have found (though still searching) that starts to touch my issues.

While driving (at varying MPH) my 2003 M45 stalls.... just random out of the blue stalls. I have been able to make it to the side of the road so far but it is happening with more frequency and is frankly starting to scare me....

after stopping it is very hard to start as though not getting fuel. After 5-7 attempts it will start to sputter like it is starting to get fuel, and on 8th or 9th attemp fires right up and is fine!!!!

It has happened 4 times in last 3 months, 2 of them in the last 4 days, the previous about a month apart.


ANYONE help. I love her but between the paint pealing, dash and seat squeak, fuel gauge and now the stalling.... she is really wearing my out.