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98 Grand Am Stalling Problem
98 Grand Am Stalling Problem
My daughter has a 98 Pontiac Grand AM....2.4 lt engine....about 83,000
miles on it.
It is having a problem with intermittent stalling.
I replaced the spark plugs and cleaned the idle air control motor. It
didn't stall for a week..then started stalling again.
I replaced the idle air control motor. It didn't stall for a week.
I replaced a defective vacuum line from the throttle body to the map
sensor and replaced the fuel filter. It didn't stall for about two
weeks....thought I had found the problem.
It is back to stalling....several times a week. 75% of the time it
stalls when it has been driven a short distance....perhaps a few
miles....so the engine is warmed up...shut off... . com e back 10
minutes later....like after running into a store...when she restarts
it, puts it in gear, steps on the gas to go... . it stalls. Usually, it
restarts no problem.
25 % of the time it stalls after a cold start....brief warm up...put
it in gear to back up....and stalls.
Any suggestions?
My daughter has a 98 Pontiac Grand AM....2.4 lt engine....about 83,000
miles on it.
It is having a problem with intermittent stalling.
I replaced the spark plugs and cleaned the idle air control motor. It
didn't stall for a week..then started stalling again.
I replaced the idle air control motor. It didn't stall for a week.
I replaced a defective vacuum line from the throttle body to the map
sensor and replaced the fuel filter. It didn't stall for about two
weeks....thought I had found the problem.
It is back to stalling....several times a week. 75% of the time it
stalls when it has been driven a short distance....perhaps a few
miles....so the engine is warmed up...shut off... . com e back 10
minutes later....like after running into a store...when she restarts
it, puts it in gear, steps on the gas to go... . it stalls. Usually, it
restarts no problem.
25 % of the time it stalls after a cold start....brief warm up...put
it in gear to back up....and stalls.
Any suggestions?
Re: 98 Grand Am Stalling Problem
start by pulling fault codes from the pcm before you throww any more
parts at it
idbwill wrote:
> Gas filter.
start by pulling fault codes from the pcm before you throww any more
parts at it
idbwill wrote:
> Gas filter.
Re: 98 Grand Am Stalling Problem
On May 11, 1:08 pm, "mr.som ting wong" <dbri...@cac . net > wrote:
> start by pulling fault codes from the pcm before you throww any more
> parts at it.
No Mr. Wong, that is "wong". You check the "basics" first, which he is
doing. He just forgot/didn't know a few things to do/check. Once
you've eliminated the basics, and a problem is still there, you can
check the codes if you want, but they will be meaningless! Someone
could have un-hooked sensors, pulled plug wires, etc. to see if the
problem changes/goes away. Of course that will set a code, which is
worthless. You need to clear the codes, then drive the car through
various conditions, then check for codes and diagnosis/repair
accordingly. If there are no codes, then you'll want check "real time
data" and see what ain't doin what when it possda.
On May 11, 1:08 pm, "mr.som ting wong" <dbri...@cac . net > wrote:
> start by pulling fault codes from the pcm before you throww any more
> parts at it.
No Mr. Wong, that is "wong". You check the "basics" first, which he is
doing. He just forgot/didn't know a few things to do/check. Once
you've eliminated the basics, and a problem is still there, you can
check the codes if you want, but they will be meaningless! Someone
could have un-hooked sensors, pulled plug wires, etc. to see if the
problem changes/goes away. Of course that will set a code, which is
worthless. You need to clear the codes, then drive the car through
various conditions, then check for codes and diagnosis/repair
accordingly. If there are no codes, then you'll want check "real time
data" and see what ain't doin what when it possda.
Re: 98 Grand Am Stalling Problem
I had it scanned for fault codes. Their were none.
I have replaced the coolant temperature sensor, the spark plugs, the
Idle Air Control motor, and the fuel filter.
To review... . it stalls a couple of times a week. 15 % of the time it
is after it was started cold and put into gear. 85 % of the time the
engine is warm...perhaps having driven 10-15 minutes and sitting at a
traffic light.. . it stalls on its own...or it is turned off after a few
minutes of driving...say to run into a store...when it is restarted
and put into gear it stalls. If it runs for a while..say driving 20-30
minutes it doesn't have the stalling problem.
I had it scanned for fault codes. Their were none.
I have replaced the coolant temperature sensor, the spark plugs, the
Idle Air Control motor, and the fuel filter.
To review... . it stalls a couple of times a week. 15 % of the time it
is after it was started cold and put into gear. 85 % of the time the
engine is warm...perhaps having driven 10-15 minutes and sitting at a
traffic light.. . it stalls on its own...or it is turned off after a few
minutes of driving...say to run into a store...when it is restarted
and put into gear it stalls. If it runs for a while..say driving 20-30
minutes it doesn't have the stalling problem.
Re: 98 Grand Am Stalling Problem
cwl313@gmail . com wrote:
> I had it scanned for fault codes. Their were none.
>
> I have replaced the coolant temperature sensor, the spark plugs, the
> Idle Air Control motor, and the fuel filter.
>
>
> To review... . it stalls a couple of times a week. 15 % of the time it
> is after it was started cold and put into gear. 85 % of the time the
> engine is warm...perhaps having driven 10-15 minutes and sitting at a
> traffic light.. . it stalls on its own...or it is turned off after a few
> minutes of driving...say to run into a store...when it is restarted
> and put into gear it stalls. If it runs for a while..say driving 20-30
> minutes it doesn't have the stalling problem.
>
>
>
If it only stalls in gear, then I'd have to second the Torque converter
lockup. there should be wiring at the brake pedal you can disconnect
and then drive for a while which will prevent the lockup from happening,
which if it's the cause, will prevent it from stalling.
The wife's Beretta has had this problem (TH125.) The solenoid starts to
stick after a few years and doesn't unlock the torque converter when you
stop, so it stalls the car out. It slowly but surely gets worse and
starts to happen more and more. One way to tell is when you're driving,
tap the brake - the rpms should pick up by about 200 when you hit the
brake as the tq unlocks and then the rpm will drop back down when you
let go of the brake as the trans locks the torque converter back up.
That said, I just solved a driveability problem on the same Beretta...
EGR valve. The car set no codes and would idle like crap - like a 69
Camaro with a big cam. If you stood on the gas, it ran great. I threw
plugs and wires (worn plugs and cracked wires) at it, then tried
cleaning the IAC - no change. Went to the junkyard and got an IAC and
an EGR while I was there. Also checked the vapor canister and the PS
switch to see if it was mucking with the idle. Replaced the EGR and all
done.
Also, your car is OBDII, so a good scan tool might help - not just a
code reader, but a scan tool. It can show you stuff to help diagnose
the actual problem, like the computer thinks it's -40 outside or
something really weird and it's trying to compensate...
Ray
cwl313@gmail . com wrote:
> I had it scanned for fault codes. Their were none.
>
> I have replaced the coolant temperature sensor, the spark plugs, the
> Idle Air Control motor, and the fuel filter.
>
>
> To review... . it stalls a couple of times a week. 15 % of the time it
> is after it was started cold and put into gear. 85 % of the time the
> engine is warm...perhaps having driven 10-15 minutes and sitting at a
> traffic light.. . it stalls on its own...or it is turned off after a few
> minutes of driving...say to run into a store...when it is restarted
> and put into gear it stalls. If it runs for a while..say driving 20-30
> minutes it doesn't have the stalling problem.
>
>
>
If it only stalls in gear, then I'd have to second the Torque converter
lockup. there should be wiring at the brake pedal you can disconnect
and then drive for a while which will prevent the lockup from happening,
which if it's the cause, will prevent it from stalling.
The wife's Beretta has had this problem (TH125.) The solenoid starts to
stick after a few years and doesn't unlock the torque converter when you
stop, so it stalls the car out. It slowly but surely gets worse and
starts to happen more and more. One way to tell is when you're driving,
tap the brake - the rpms should pick up by about 200 when you hit the
brake as the tq unlocks and then the rpm will drop back down when you
let go of the brake as the trans locks the torque converter back up.
That said, I just solved a driveability problem on the same Beretta...
EGR valve. The car set no codes and would idle like crap - like a 69
Camaro with a big cam. If you stood on the gas, it ran great. I threw
plugs and wires (worn plugs and cracked wires) at it, then tried
cleaning the IAC - no change. Went to the junkyard and got an IAC and
an EGR while I was there. Also checked the vapor canister and the PS
switch to see if it was mucking with the idle. Replaced the EGR and all
done.
Also, your car is OBDII, so a good scan tool might help - not just a
code reader, but a scan tool. It can show you stuff to help diagnose
the actual problem, like the computer thinks it's -40 outside or
something really weird and it's trying to compensate...
Ray
Re: 98 Grand Am Stalling Problem
I had it scanned for fault codes. Their were none.
I have replaced the coolant temperature sensor, the spark plugs, the
Idle Air Control motor, and the fuel filter.
To review... . it stalls a couple of times a week. 15 % of the time it
is after it was started cold and put into gear. 85 % of the time the
engine is warm...perhaps having driven 10-15 minutes and sitting at a
traffic light.. . it stalls on its own...or it is turned off after a few
minutes of driving...say to run into a store...when it is restarted
and put into gear it stalls. If it runs for a while..say driving 20-30
minutes it doesn't have the stalling problem.
I had it scanned for fault codes. Their were none.
I have replaced the coolant temperature sensor, the spark plugs, the
Idle Air Control motor, and the fuel filter.
To review... . it stalls a couple of times a week. 15 % of the time it
is after it was started cold and put into gear. 85 % of the time the
engine is warm...perhaps having driven 10-15 minutes and sitting at a
traffic light.. . it stalls on its own...or it is turned off after a few
minutes of driving...say to run into a store...when it is restarted
and put into gear it stalls. If it runs for a while..say driving 20-30
minutes it doesn't have the stalling problem.
Re: 98 Grand Am Stalling Problem
On May 14, 10:26 am, cwl...@gmail . com wrote:
> I had it scanned for fault codes. Their were none.
>
> I have replaced the coolant temperature sensor, the spark plugs, the
> Idle Air Control motor, and the fuel filter.
>
> To review... . it stalls a couple of times a week. 15 % of the time it
> is after it was started cold and put into gear. 85 % of the time the
> engine is warm...perhaps having driven 10-15 minutes and sitting at a
> traffic light.. . it stalls on its own...or it is turned off after a few
> minutes of driving...say to run into a store...when it is restarted
> and put into gear it stalls. If it runs for a while..say driving 20-30
> minutes it doesn't have the stalling problem.
My WAG would be the torque converter clutch solenoid
On May 14, 10:26 am, cwl...@gmail . com wrote:
> I had it scanned for fault codes. Their were none.
>
> I have replaced the coolant temperature sensor, the spark plugs, the
> Idle Air Control motor, and the fuel filter.
>
> To review... . it stalls a couple of times a week. 15 % of the time it
> is after it was started cold and put into gear. 85 % of the time the
> engine is warm...perhaps having driven 10-15 minutes and sitting at a
> traffic light.. . it stalls on its own...or it is turned off after a few
> minutes of driving...say to run into a store...when it is restarted
> and put into gear it stalls. If it runs for a while..say driving 20-30
> minutes it doesn't have the stalling problem.
My WAG would be the torque converter clutch solenoid
Re: 98 Grand Am Stalling Problem
thats what i was thinking too from the conditions stated
"wcs94@detroit.usa . com " wrote:
> On May 14, 10:26 am, cwl...@gmail . com wrote:
> > I had it scanned for fault codes. Their were none.
> >
> > I have replaced the coolant temperature sensor, the spark plugs, the
> > Idle Air Control motor, and the fuel filter.
> >
> > To review... . it stalls a couple of times a week. 15 % of the time it
> > is after it was started cold and put into gear. 85 % of the time the
> > engine is warm...perhaps having driven 10-15 minutes and sitting at a
> > traffic light.. . it stalls on its own...or it is turned off after a few
> > minutes of driving...say to run into a store...when it is restarted
> > and put into gear it stalls. If it runs for a while..say driving 20-30
> > minutes it doesn't have the stalling problem.
>
> My WAG would be the torque converter clutch solenoid
thats what i was thinking too from the conditions stated
"wcs94@detroit.usa . com " wrote:
> On May 14, 10:26 am, cwl...@gmail . com wrote:
> > I had it scanned for fault codes. Their were none.
> >
> > I have replaced the coolant temperature sensor, the spark plugs, the
> > Idle Air Control motor, and the fuel filter.
> >
> > To review... . it stalls a couple of times a week. 15 % of the time it
> > is after it was started cold and put into gear. 85 % of the time the
> > engine is warm...perhaps having driven 10-15 minutes and sitting at a
> > traffic light.. . it stalls on its own...or it is turned off after a few
> > minutes of driving...say to run into a store...when it is restarted
> > and put into gear it stalls. If it runs for a while..say driving 20-30
> > minutes it doesn't have the stalling problem.
>
> My WAG would be the torque converter clutch solenoid
Re: 98 Grand Am Stalling Problem
it's plain to me you have no common sense when it comes to fixing a car
the basics would be check battery connections then scan tool
a scantool and fault codes can and do reveal the basics
idbwill wrote:
> On May 11, 1:08 pm, "mr.som ting wong" <dbri...@cac . net > wrote:
> > start by pulling fault codes from the pcm before you throww any more
> > parts at it.
>
> No Mr. Wong, that is "wong". You check the "basics" first, which he is
> doing. He just forgot/didn't know a few things to do/check. Once
> you've eliminated the basics, and a problem is still there, you can
> check the codes if you want, but they will be meaningless! Someone
> could have un-hooked sensors, pulled plug wires, etc. to see if the
> problem changes/goes away. Of course that will set a code, which is
> worthless. You need to clear the codes, then drive the car through
> various conditions, then check for codes and diagnosis/repair
> accordingly. If there are no codes, then you'll want check "real time
> data" and see what ain't doin what when it possda.
it's plain to me you have no common sense when it comes to fixing a car
the basics would be check battery connections then scan tool
a scantool and fault codes can and do reveal the basics
idbwill wrote:
> On May 11, 1:08 pm, "mr.som ting wong" <dbri...@cac . net > wrote:
> > start by pulling fault codes from the pcm before you throww any more
> > parts at it.
>
> No Mr. Wong, that is "wong". You check the "basics" first, which he is
> doing. He just forgot/didn't know a few things to do/check. Once
> you've eliminated the basics, and a problem is still there, you can
> check the codes if you want, but they will be meaningless! Someone
> could have un-hooked sensors, pulled plug wires, etc. to see if the
> problem changes/goes away. Of course that will set a code, which is
> worthless. You need to clear the codes, then drive the car through
> various conditions, then check for codes and diagnosis/repair
> accordingly. If there are no codes, then you'll want check "real time
> data" and see what ain't doin what when it possda.
Re: 98 Grand Am Stalling Problem
On May 17, 9:44 am, "mr.som ting wong" <dbri...@cac . net > wrote:
> it's plain to me you have no common sense when it comes to fixing a car
> the basics would be check battery connections then scan tool
> a scantool and fault codes can and do reveal the basics
LOL. I believe your serious. So your telling me this is how you check
the basics: "when it comes to fixing a car the basics would be check
battery connections then scan tool". Still laughing!
On May 17, 9:44 am, "mr.som ting wong" <dbri...@cac . net > wrote:
> it's plain to me you have no common sense when it comes to fixing a car
> the basics would be check battery connections then scan tool
> a scantool and fault codes can and do reveal the basics
LOL. I believe your serious. So your telling me this is how you check
the basics: "when it comes to fixing a car the basics would be check
battery connections then scan tool". Still laughing!
Re: 98 Grand Am Stalling Problem
On Thu, 8 May 2008 09:03:26 -0700 (PDT), cwl313@gmail . com wrote:
>
>25 % of the time it stalls after a cold start....brief warm up...put
>it in gear to back up....and stalls.
>
>
>Any suggestions?
Check and / or replace the coolant temp sensor. Check the connections
to make sure they are sound.
Steve B.
On Thu, 8 May 2008 09:03:26 -0700 (PDT), cwl313@gmail . com wrote:
>
>25 % of the time it stalls after a cold start....brief warm up...put
>it in gear to back up....and stalls.
>
>
>Any suggestions?
Check and / or replace the coolant temp sensor. Check the connections
to make sure they are sound.
Steve B.
