hard start cold, 2003 GT [Archive] - GrandAmGT.com Forum

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siliconmonkey
10-03-2009, 01:45 PM
this has been happening for a while.
very first start of the day, it turns and turns, sometimes struggles and starts,
sometimes it takes 2-3 tries.
dealer couldnt' find anything wrong, took it to another shop and they replaced the
fuel filter but still happens.
41k miles.
thank you

DrFabulous
10-03-2009, 01:47 PM
Fuel pressure regulator?

siliconmonkey
10-03-2009, 01:50 PM
Fuel pressure regulator?


the dealership said they checked the pressure and it was ok. i'll have the shop
check. i think the dealership didn't listen when i told them it had to be hooked up to diagnostics before the first start.. i think they drove it into the garage and then tested. thanks for the reply.

DrFabulous
10-03-2009, 01:52 PM
the dealership said they checked the pressure and it was ok. i'll have the shop
check. i think the dealership didn't listen when i told them it had to be hooked up to diagnostics before the first start.. i think they drove it into the garage and then tested. thanks for the reply.

You can visually check it to see if its leaking, mine looked pretty rough/covered in gas when I started having starting issues

http://i20.photobucket.com/albums/b247/DrFabulous26/011.jpg

siliconmonkey
10-03-2009, 02:04 PM
http://patrickfixedit.com/gallery2/v/grandam/

I took some pics just now, what do you think? thanks for your quick replies!

Patrick

http://patrickfixedit.com/gallery2/d/3539-2/DSCF0459.JPG

siliconmonkey
10-14-2009, 07:47 AM
any ideas anyone?

oldschoolguy
10-14-2009, 02:26 PM
same problem here. I find that if I push the gas pedal all the way in while cranking, it helps give that last push into firing up. But you gotta let go real quick so the rpm's don't go up.

cks20
10-15-2009, 11:22 AM
Have you checked the fuel pressure? If this is too low, it will be hard to start, particularly when it is cold.

siliconmonkey
10-15-2009, 04:28 PM
dealership said the fuel pressure level was good.
not sure what to check next.
pushing the gas pedal in on start doesn't help... and now it's starting to idle rough.

2000Gt Grand Am
11-01-2009, 06:50 PM
Could be a few things, maybe need new spark plugs (check engine light should come on for this), use a higher octane gas from Shell or BP (especially if you got a V6 - i use shell's 93 octane gas) & you may need to clean your fuel line starting from the pump. It also could be your fuel pump too, try doing a few hard accelerations to see if your car hesitates. Could also use a oil change too.

AaronGTR
11-01-2009, 10:38 PM
Could be a few things, maybe need new spark plugs (check engine light should come on for this), use a higher octane gas from Shell or BP (especially if you got a V6 - i use shell's 93 octane gas) & you may need to clean your fuel line starting from the pump. It also could be your fuel pump too, try doing a few hard accelerations to see if your car hesitates. Could also use a oil change too.


Using higher octane gas will do absolutely nothing for your car or for starting issues. The car isn't designed to use high octane and it won't help the engine start. The issue is somewhere else... and you're wasting your money on high price gas.


If the fuel pressure is good before you start it, it probably isn't the fuel pump. If the regulator or the check valve is bad and is leaking down too fast that could be it though. If the fuel pressure drops before you crank the engine that could cause you to have to crank 3-5 seconds longer than normal. Have a shop check the pressure again. When you turn the key on the pump only kicks on for about 3 seconds to build pressure then shuts off until you crank the engine over then it's supposed to come on again. The fuel pressure shouldn't go down much after you turn the key on and leave it on without cranking. It shouldn't drop more than 1psi per minute. If it's dropping, the check valve could be bad. Unfortunately it's built into the pump assembly, but you can always add an aftermarket check valve inline after the fuel filter.

Anyway that's the first place I'd look. Always good to check your plugs and wires too. Could also be a dirty MAF sensor or even air filter. Make sure all that stuff is clean and operating properly.

djm
11-02-2009, 05:24 PM
check spark plug if you see carbon residues probably has a rich mixture of gasoline
check os sensor, fpr, air filter

2000Gt Grand Am
11-03-2009, 06:58 PM
Using higher octane gas will do absolutely nothing for your car or for starting issues. The car isn't designed to use high octane and it won't help the engine start. The issue is somewhere else... and you're wasting your money on high price gas.


Actually it can, i had a 98 SE Grand Am that had dirty intake valves & i even had to replace my fuel pump because i was using cheap low octane gas, from citgo or speedway. I had to tow my car into a Carmax dealer (bought it from there) & they said to only use '93 Octane Shell or BP (or whatever the name was before that). Ever since then i have had zero problems. It's true that some cars cannot handle the higher octane fuel, ex: ford escorts., but since i bought my 00' Gt in 03' i have had no problems with having a dirty fuel filter, injectors & intake valves.

I had a similar problem with my '98 where sometimes it would have problems starting (more like hesitating starts & idling engine stalls), idling rough & figured he might have an issue with dirty intake valves.

AaronGTR
11-04-2009, 12:17 AM
Actually it can, i had a 98 SE Grand Am that had dirty intake valves & i even had to replace my fuel pump because i was using cheap low octane gas, from citgo or speedway. I had to tow my car into a Carmax dealer (bought it from there) & they said to only use '93 Octane Shell or BP (or whatever the name was before that). Ever since then i have had zero problems. It's true that some cars cannot handle the higher octane fuel, ex: ford escorts., but since i bought my 00' Gt in 03' i have had no problems with having a dirty fuel filter, injectors & intake valves.

I had a similar problem with my '98 where sometimes it would have problems starting (more like hesitating starts & idling engine stalls), idling rough & figured he might have an issue with dirty intake valves.


The octane has nothing to do with it though. :rolleyes: It's the additives they put in the gas. Don't buy low quality gas from cheap "no name" gas stations and you won't have a problem. Or you could run an occasional bottle of fuel system cleaner through it too, but using higher quality gasoline is the better way to go.

MMGT1
11-04-2009, 09:17 AM
Aaron is on track once again I think guys. Pull that MAF and get a couple of picks of it for us. There are a couple of posts about pulling the MAF. Here is a link to the picks I took when I did mine a couple of weeks ago.

http://s823.photobucket.com/albums/zz159/MMGT1/Cleaning%20A%20GM%20Maf/

Pull it apart and clean the three sensors in there. I used a throttle body cleaner with Q-tips to do mine. You can also pick up MAF cleaner but still take it apart, spraying through will not clean it properly, you need to get to those sensors with a Q-tip and it'll be done right. Cheap, quick, and should be done at least once a year, more often if you use a "oiled" filter.

2000Gt Grand Am
11-04-2009, 12:21 PM
The octane has nothing to do with it though. :rolleyes: It's the additives they put in the gas. Don't buy low quality gas from cheap "no name" gas stations and you won't have a problem. Or you could run an occasional bottle of fuel system cleaner through it too, but using higher quality gasoline is the better way to go.

Well neither of us were being specific on that topic. As you could have just said that in the first place lol. It's ok cuz i just googled it & i found the same thing u just said; Go to a better quality gas station that uses additives/cleaners in thier gas.

siliconmonkey
11-20-2009, 04:00 PM
the hard start problem went away by itself so i'm thinking we must have
gotten some bad gas.
just today as we were driving the check engine and ABS lights came on and stayed on. i'm thinking the first thing i should do is change the plugs?
what the heck is going on with this car i wonder?
argh, it would start acting up again on on my birthday. :/

oldschoolguy
11-20-2009, 04:12 PM
is your traction control light on? If so it could be the speed sensor on one of your front hubs

siliconmonkey
11-20-2009, 04:39 PM
is your traction control light on? If so it could be the speed sensor on one of your front hubs

yeap traction light is on.
i think someone at one of the shops mentioned this.
how $$ is this to replace usually?

oldschoolguy
11-20-2009, 07:10 PM
I got it replaced a year ago and it cost me around 375-400 Canadian

oldschoolguy
11-20-2009, 07:12 PM
argh, it would start acting up again on on my birthday. :/

:birthday: lol

lone_wolf025
11-20-2009, 07:29 PM
Go to autozone or one of those chain stores and have them check the code for the engine light. The traction control light probably has to do with one (or more) of the speed sensors going bad. Only way to tell is to check em out one by one and inspect the wiring. If you're mechanically inclined its not that hard of a job to do.

Don't replace the plugs until you've actually looked at them either. If they look clean or slightly whitish and the electrodes have good solid edges you're fine. If they're black and dirty and nasty, clean them off real good and try again. If one alone is dirty and nasty you might have a leaky injector.