Question about 2003 Pontiac Sunfire

1 Answer

2003 sunfire 4dr starting problem

Hi I have a 2003 pontiac sunfire that won't start whenever it feels like it, it is becoming very annoying, it sometimes will take just 3-4 diffrent times to crank or some times until the battery can't take it any more. I took it to the GM dealership and they don't know what the problem is, there are no codes in the system and the fuel pump pressure is good even when it was acting up. They mentioned something about the security system thinking that it is not recognizing the key or so bur I highly doubt that because the key that my car has there's no chip in it. I would really appreciate if any suggestions can be given to me, thank you in advance.

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 421 Answers

When this occurs locate the crankshaft position sensor mounted somewhere on the bell housing ,take a small hammer and lightly tap it while someone cranks the car over if it fires right up you got your culprit,sometimes this will work and sometimes not but the only way to test this sensor is with a graphing multimeter a good shop should be able to test this for you( you can also see if the car has spark when this problem is occurring by pulling a spark plug wire and laying it close to a good ground, or plug a test spark plug in the wire and ground it with the supplied lead, if you have no spark this sensor can also be your problem . these problems can be annoying and hard to locate but give this a try i have a good feeling about this one ;) please rate

Posted on Sep 12, 2008

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Can you put a transmission from a 2002 chevy impala in a 1999 Saturn sw2


about replacing a transmission with one from a Junkyard or cross referencing them. and to show you that not all 4T65E transmissions are interchangeable, although they look alike. Guys with the comp g package or the Impala police option often find this out the hard way.
Your car and the potential donor car will have a tag in the trunk (usually under the spare tire cover) that lists the RPO codes for your car, along with your VIN. RPO=Regular Production Order. Several of these codes relate to the transmission, and you will need them to begin to find a proper match. If you can't find the RPO tags, you can look up the RPOs for a nominal fee ($5) according to the VIN number at the following website: www . compnine . com .
I know these transmissions are different in at least 5 areas, and you have to match each area for a proper swap.
FIRST is the transmission type, which relates to torque converter size, the strength of the internal gears, and the strength of the differential. Here are the basic types along with their RPO codes:
M15 - 245 mm (9.6 in) torque converter
MN3 - 258 mm (10.2 in) torque converter
MN7 - 258 mm (10.2 in) torque converter and heavy-duty gearbox and differential (see 4T65E-HD)
MD7 - 245 mm (9.6 in) torque converter (Chinese version)
M76 - 245 mm (9.6 in) torque converter (with all-wheel drive capability)
You will want a match these RPO codes.
SECOND is the final drive ratio. The PCM can detect the difference, and in some cars may not engage if the correct final drive is not present. Here are the RPO codes for the four different final drives used in the transmission.
FQ3 - RATIO TRANSAXLE FINAL DRIVE 2.86;
FR2 - RATIO TRANSAXLE FINAL DRIVE 2.93;
F83 - RATIO TRANSAXLE FINAL DRIVE 3.05;
FR9 - RATIO TRANSAXLE FINAL DRIVE 3.29;
To narrow year search for potential cars, the following site have pretty good info on the final drives used on various cars. Click on the years of the cars in question.http://www.gmtuners.com/transmission/index.htm
THIRD is the converter stall speed. There will be small differences for most cars as it is based on car weight as well as final drive value and engine ratings. Reusing the cars original torque converter will address that area. Some indication of stall speed value is given in the K-factor information in the above gmtuners page. This bottom of this page from the gmtuners website will show you how to decipher the four digit code on the torque converter. http://www.gmtuners.com/gmtransinfo.htm
FOURTH, the torque converter needs to have the correct lockup clutch friction material for the PCM that controls it (regardless of HD nor not). This changed over the years. The newer ones can be used on older transmissions with calibration changes, but older type in newer transmissions will fail. Reusing the cars original torque converter will address that area.
FIFTH is area is electrical compatibility, and this is what trips up a lot of guys. 3 different electrical interfaces to the transmissions were used from 97-08. Some of these differences had to do with how the PCM determined what gear the transmission was in, or was commanded to be in. If you look on a GM parts web site, you will see that three different internal harnesses are available for the 4T65E. Each of the three harnesses is listed below along with the cars that use the harness. Your car and the donor car will have to match. If you have any additional insight, please leave me a comment and I can correct this post.
CARS USING HARNESS 24241204
Buick Century 4DR Custom2000, 2001, 2002
Buick Century 4DR LIMITED2000, 2001, 2002
Buick Lesabre 4DR CUSTOM1998, 1999
Buick Lesabre 4DR LIMITED1998, 1999
Buick Park Avenue 4DR Base1997, 1998
Buick Park Avenue 4DR ULTRA1997, 1998
Buick Regal 4DR GS1998, 1999, 2000, 2001, 2002
Buick Regal 4DR LS1998, 1999, 2000, 2001, 2002
Buick RENDEVOUS 4DR2002
Buick Riviera 2DR Base1997, 1998, 1999
Chevrolet Lumina 4DR Base w/ 3.1L (LG8) eng2000, 2001
Chevrolet Lumina 4DR LTZ1997, 1998, 1999
Chevrolet Monte Carlo Z341997, 1998, 1999
Chevrolet Venture2001, 2002
Oldsmobile 88 4DR Base1997, 1998, 1999
Oldsmobile 88 4DR Regency1997, 1998
Oldsmobile 88 4DR Royale, Base and LS1997, 1998, 1999
Oldsmobile 88 4DR ROYALE LSS1997, 1998, 1999
Oldsmobile Intrigue 4DR Base1998
Oldsmobile Intrigue 4DR GL1998, 1999, 2000, 2001, 2002
Oldsmobile Intrigue 4DR GLS1998, 1999, 2000, 2001, 2002
Oldsmobile Intrigue 4DR GX1999, 2000, 2001, 2002
Oldsmobile Silhouette1999, 2000, 2001, 2002
Pontiac Aztek Hatchback Base and GT2001, 2002
Pontiac Bonneville 4DR SE1998, 1999
Pontiac Bonneville 4DR SSE1997, 1998, 1999
Pontiac Grand Prix 2DR GT1998, 1999, 2000, 2001, 2002
Pontiac Grand Prix 2DR GTP1999, 2000, 2001, 2002
Pontiac Grand Prix 4DR GT1998, 1999, 2000, 2001, 2002
Pontiac Grand Prix 4DR GTP1999, 2000, 2001, 2002
Pontiac Grand Prix 4DR SE2000, 2001, 2002
Pontiac MONTANA Base1999, 2000, 2001
Pontiac MONTANA EXT MOBILITY SPECIAL2002, 2003
Pontiac MONTANA MPV1999, 2000, 2001
Pontiac MONTANA MPV BASE2002, 2003
Pontiac MONTANA MPV EXT1999, 2000, 2001, 2002
Pontiac MONTANA MPV EXT BASE2002, 2003
Pontiac MONTANA MPV EXT UPLEVEL2002, 2003
Pontiac MONTANA MPV SPECIAL2000, 2001, 2002, 2003

CARS USING HARNESS 24241205
Buick Lesabre 4DR CUSTOM2000, 2001, 2002
Buick Lesabre 4DR LIMITED2000, 2001, 2002
Buick Park Avenue 4DR Base1999, 2000, 2001, 2002
Buick Park Avenue 4DR ULTRA1999, 2000, 2001, 2002
Chevrolet Impala 4DR Base2000, 2001, 2002
Chevrolet Impala 4DR LS2000, 2001, 2002
Chevrolet Monte Carlo LS2000, 2001, 2002
Chevrolet Monte Carlo SS2000, 2001, 2002
Oldsmobile Aurora 4DR 3.5L2001, 2002
Oldsmobile Aurora 4DR Base2001, 2002
Pontiac Bonneville 4DR SE2000, 2001, 2002
Pontiac Bonneville 4DR SLE SSEI2000, 2001, 2002
Pontiac Bonneville 4DR SSEI2000, 2001, 2002

CARS USING HARNESS 24237264
Buick Century 4DR Custom2003, 2004, 2005
Buick Century 4DR LIMITED2003
Buick LaCrosse 4DR Base2005, 2006, 2007, 2008, 2009
Buick LaCrosse 4DR CX2005, 2006, 2007, 2008, 2009
Buick LaCrosse 4DR CXL2005, 2006, 2007, 2008, 2009
Buick LaCrosse 4DR CXS2005, 2006, 2007, 2008, 2009
Buick LaCrosse 4DR SS2008, 2009
Buick Lesabre 4DR CUSTOM2003, 2004, 2005
Buick Lesabre 4DR LIMITED2003, 2004, 2005
Buick Lucerne 4DR CX2006, 2007, 2008, 2009, 2010, 2011
Buick Lucerne 4DR CX CLOTH2009, 2010, 2011
Buick Lucerne 4DR CX CLOTH PLUS2009, 2010, 2011
Buick Lucerne 4DR CXL2006, 2007, 2008, 2009, 2010, 2011
Buick Lucerne 4DR CXL LEATHER2009, 2010, 2011
Buick Lucerne 4DR CXL LUX & CONFIDENCE2009, 2010, 2011
Buick Lucerne 4DR CXL LUXURY2009, 2010, 2011
Buick Lucerne 4DR CXL SPECIAL EDITION2006, 2007, 2008, 2009, 2010, 2011
Buick Lucerne 4DR CXL ULTRA2009, 2010, 2011
Buick Park Avenue 4DR Base2003, 2004, 2005
Buick Park Avenue 4DR ULTRA2003, 2004, 2005
Buick Regal 4DR GS2003, 2004
Buick Regal 4DR LS2003, 2004
Buick RENDEVOUS 4DR2003, 2004, 2005, 2006, 2007
Buick Rendezvous2003, 2004, 2005, 2006, 2007
Buick TERRAZA2005, 2006, 2007
Chevrolet Impala 4DR 50TH ANN SPL2008
Chevrolet Impala 4DR Base2003, 2004, 2005
Chevrolet Impala 4DR FLEET 1FL2011
Chevrolet Impala 4DR FLEET 2FL2011
Chevrolet Impala 4DR LS2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Chevrolet Impala 4DR LT2006, 2007, 2008, 2009, 2010
Chevrolet Impala 4DR LT 3.52006, 2007, 2008, 2009, 2010, 2011
Chevrolet Impala 4DR LTZ2006, 2007, 2008, 2009, 2010, 2011
Chevrolet Impala 4DR POLICE2004, 2006, 2007, 2008, 2009, 2010, 2011
Chevrolet Impala 4DR SS2004, 2005, 2006, 2007, 2008, 2009
Chevrolet Impala 4DR TAXI2011
Chevrolet Malibu 4DR SS2006, 2007
Chevrolet Malibu Hatchback MAXX SS2006, 2007
Chevrolet Monte Carlo Base2003, 2004, 2005
Chevrolet Monte Carlo LS2003, 2004, 2005, 2006, 2007
Chevrolet Monte Carlo LS LS2003, 2004, 2005
Chevrolet Monte Carlo LT2005, 2006, 2007
Chevrolet Monte Carlo LT 3.52006
Chevrolet Monte Carlo LTZ2006
Chevrolet Monte Carlo SS2003, 2004, 2006, 2007
Chevrolet Monte Carlo SS HI Sport2004, 2005
Chevrolet UPLANDER2005, 2006, 2007, 2008, 2009
Chevrolet Venture2003, 2004, 2005
Oldsmobile Silhouette2003, 2004
Pontiac Aztek Hatchback Base2003, 2004, 2005
Pontiac Aztek Hatchback GT2003, 2004, 2005
Pontiac Bonneville 4DR SE2003, 2004, 2005
Pontiac Bonneville 4DR SLE2005
Pontiac Bonneville 4DR SLE GXP2004, 2005
Pontiac Bonneville 4DR SLE SSEI2003
Pontiac Bonneville 4DR SSEI2003
Pontiac G6 Base2006, 2009
Pontiac G6 GT2007, 2008, 2009f
Pontiac G6 GT UPLEVEL2009
Pontiac G6 GXP2006
Pontiac Grand Prix 4DR Base2006, 2007, 2008
Pontiac Grand Prix 4DR GT2003, 2004, 2005, 2006, 2007
Pontiac Grand Prix 4DR GT22004, 2005
Pontiac Grand Prix 4DR GTP2003, 2004, 2005, 2006
Pontiac Grand Prix 4DR GXP2005, 2006, 2007, 2008
Pontiac Grand Prix 4DR SE2003
Pontiac Grand Prix 4DR SE12003
Pontiac MONTANA EXT MOBILITY SPECIAL2003, 2004, 2005
Pontiac MONTANA MPV BASE2003, 2004, 2005
Pontiac MONTANA MPV EXT2003, 2004, 2005
Pontiac MONTANA MPV EXT BASE2003, 2004, 2005
Pontiac MONTANA MPV EXT UPLEVEL2003, 2004, 2005
Pontiac MONTANA MPV SPECIAL2003, 2004, 2005
Pontiac SV-62005, 2006, 2007, 2008, 2009
Saturn Relay2005, 2006, 2007
GM FWD Transmission ID chart

Nov 11, 2017 | Saturn Cars & Trucks

2 Answers

2003 Pontiac sunfire wont turn over new battery dash lighs up


Pontiac Sunfire Questions - car won't start - CarGurus

www.cargurus.com > Questions > Pontiac > Sunfir

CarGurusAug 16, 2011 - car won't start - replaced ignition lock on 2002 pontiac sunfire antitheft light is ... system goes into fail safe mode and you won't have any more problems. ...lock cylinder on 2003 pontiac sunfire....when new lock cylinder was ...

Sep 10, 2015 | Pontiac Cars & Trucks

1 Answer

2003 sunfire won,t start, turns over but does not get spark, any suggestions would be greatly appreciated


Hi Alan, Have the vehicle scanned with a diagnostic scan tool. The problem may be a crankshaft or camshaft pickup sensor. The scan will pinpoint where the problem is. Regards John

Oct 06, 2012 | 2003 Pontiac Sunfire

2 Answers

Does my 2003 pontiac sunfire ecotec motor have a cam sensor? Where is it? If it starts as soon as u give it gas it cuts out. I've replaced: fuel pump, fuel filter, coil pk, spark plugs, crank sensor,...


there is still more to check. like the mass air flow sensor, the whole fuel line cleanout, and if its an auto it does have a camshaft sensor. its located into the transmission.

Jan 04, 2010 | 2003 Pontiac Sunfire

1 Answer

Check automatic transmission fluid 2001 pontiac sunfire


You need to raise the vehicle and start it. Remove the plug near where the passenger side driveshaft comes out. The head of the plug is 7/16. Trans fluid will stream out of the hole when the engine is running when the transmission is full, If fluid doesn't run out, fill the trans until fluid runs out. The fill cap is red and it is on top under and around the air cleaner box. If you need more help let me know.

May 26, 2009 | 2001 Pontiac Sunfire

1 Answer

How to check transmission fluid 2001 pontiac sunfire


Thank you for your help. Raised the vehicle started it. Removed the plug on passenger side of driveshaft where it joins the transmission. The head of this plug is 7/16 inch. Fluid Streamed out showing it was full.
This was sent to me by E-Mail from FixYa.

csmock 132
Rank: Guru Pontiac Expert

May 25, 2009 | 2001 Pontiac Sunfire

1 Answer

2003 Pontiac Sunfire 4 cyl, hard start, runs great after starting


check the hose for fuel pressure regulato if is fuel on the hose replace the fuel pressure regualtor.

Apr 17, 2009 | 2003 Pontiac Sunfire

Not finding what you are looking for?
2003 Pontiac Sunfire Logo

330 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts

yadayada
yadayada

Level 3 Expert

79186 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8836 Answers

Are you a Pontiac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...