Problem with my 2001 Pontiac Grand AM Se
2.4L four cylinder
dash lights = Service Engine Soon,
TRAC OFF
codes P0113
tip/donation yes
GM tech = any
question = I've just gotten my code from Autozone, and it said that i  
had to change/repair my intake air temp. Circuit, which i did. I
connected everything back in place, so, i cleared the code, and my SES light
is still on. Is there something wrong with the SES light, or is it
something with the intake air temp.? What is the TRAC OFF warning light, and
what must i do to clear the light? Finally, when I am driving, around
25 mph, and 35-40 mph my car jolts real quick and continues to drive,
it worries me if something is wrong with the transmission, is there any
way i can tell whats wrong with it or is this common and what can i do?

JK:
If replacing the sensor did not fix the p0113 codes, then the other common cause for this
code is a problem in/at the connector of the IAT sensor. Either the wire(s) have broken
inside the connector at the terminal, or the copper wire inside the insulation(colored
exterior of wire) has broken. Disconnect the connector, and pull on each wire to see if it
pulls out of connector, or starts to stretch. When the copper wire breaks inside the
insulation, the insulation will stretch. It will be quite obvious. Don't pull real hard, as that
may cause a good wire to break. There is actually a bulletin for replacing the connector
with a GM service kit. The part # for that kit is 12102620. It is a connector with wire leads.

The TRAC OFF light comes on for many reasons. That light can come on for many
CHECK ENGINE LIGHT codes. When the computer sees a problem with most of the
engine control systems, it cannot properly control the Traction system, so it shuts it off.
Dont think Autozone has the ability to scan the Anti-lock brake module to read Traction
codes. After checking/repairing the IAT connector, clear codes with scanner, or
disconnect battery for a few minutes. If only TRAC light comes back on, you will have to
get the ABS computer scanned.

The problem at the speed you described may be related to the above conditions, or it
could be a transmission problem. Suggest getting those dash lights to be repaired first. If
still this driving problem at the speeds you described, would suggest having a trans.
repair facility go for a test drive to determine if in fact it is in the trans. If so, then a fluid
and filter change may help, and the person doing the filter can look in the bottom of the
pan for signs of debre.  If you need more help, just let me know, JK
TRAC OFF light - Service engine soon - GM cars
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Trac off / Service Traction control system
---------------------------------------------------------
This light or indicator on the dash or message center is usually related to   the ABS system, and
sometimes to the check engine light.
When this is on, the traction system is disabled. A problem in the
ABS  system is usually the cause,
and would have to be scanned for codes.
Sometimes and engine problem that causes a check engine light will also  cause the TRAC OFF light
to come on certain vehicles. In this case, the  PCM would have to be scanned for codes and repaired
first. Then the  traction control system codes can be cleared.
WARNING LIGHTS
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11-11-10
I just had this Problem and my wire for my ABS light was ripped out on the right side.
Comments
2-8-11
It was the IAt sensor.
4-11-11
I have the same issues the only difference is. I have abs,trac off, service vehicle soon and check
engine. The car wont start if when i turn key to on pos
ition the check engine lite dont come. So i
play with key and gas peddle and it comes on then car starts. Has any one seen this before
Since playing with the key will get it to work sometimes, I'd say
you have a faulty ignition switch. Your vehicle may actually
have a manufacturer recall about ignition problems that you
check out at your local GM dealer. They can run your VIN and
tell you if there are any open campaigns for your vehicle.

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2-9-12
I got a 2002 Grand Am SE 2.2 Ecotec and have the same  problems i ready fix. It i buy a new
intake temperature sensor and. The problem. Gone. And the trac off you need check the wires
or the sensor placed behind the rotor maybe Its unplugged or don't work i did it and my problems
done you don't  have to erase the trouble code those gone itself.