Question about 2002 Pontiac Grand Am

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2002 Grand Am - 2.2L Manual Trans - really sluggish in 5th gear - going 100KM/hr and there is vertually no GO GO when you give it gas and need to down shift if you are going up hill. Seems to be fine

Going down the highway - approach a hill at 100 KM hr and give it some gas but very little if any increase in speed - need to down shift to 4th gear to go up the hill. 5th gear will just maintain or possibly loose speed. The clutch is not slipping in any of the gears and the boggishness of acceleration is only apparent - slightly in 4th gear and very noticeable in 5th gear. car has 105,000 km on it

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  • Pontiac Master
  • 76,682 Answers

The following are the general instructions on the start of diagnosing any electronically controlled engine or transmission problem.

The engine and the automatic transmission (transmission control is only for automatics, engine is still computer controlled no matter the transmission type) in this vehicle are computer controlled and in most cases when a fault occurs a fault code is stored in the memory of the computer control module. There are exception to this, such as the Mass Airflow Meter and fuel pressure problems. What must be done is to have all the basic testing done such as a scan of the system for fault codes as well as a check with a live data scanner tool for engine functions that are not within range of normal, a trained technician is required to know what is correct and what isn't, then based on careful diagnostics done from a factory repair manual the correct part is replaced or the wiring repaired or the computer replaced (known as the PCM or ECM,ECU), which is very rarely the problem. Other basic checks must be done as well such as mechanical problems with the engine as well as engine state of tune and mileage on the engine. The transmission can have mechanical issues as well such as no gear engagement at all or a failed pump or other pressure related problems. Also engine mechanical problems can and do cause many drive-ability related problem such as rough idle and other symptoms.

Posted on Nov 03, 2012

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Posted on Jan 02, 2017

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philriden
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SOURCE: My grand prix, shifting problem.

sounds like you need to check your throtle position sensor first. that will cause this problem.you can go to autozone they cancheck it with a scanner. hope this helps you out . Phil

Posted on Jan 17, 2009

  • 169 Answers

SOURCE: 2003 pontiac slips on 2-3 shift and does not down shift all the

who ever rebuilt trns missed something poss pcs solenoid, seals leak in input housing,seals or support housing leak,worn valvle in valve body, did he clear shift adapts, did he check for codes, did he do a press check, did he flush cooler nice trns overhaul good thing you got a warranty on job

Posted on Aug 30, 2009

  • 564 Answers

SOURCE: 2002 pontiac grand am will not shift oh highway no passing gear.

ck fluid level,,ck color or smell it to see if it smells burnt,,trans filter could be plug up

Posted on Feb 04, 2010

  • 1 Answer

SOURCE: I have a 1996 pontiac grand am the trans shifts

Tip on end of park rod has slipped and is staying in the park position. Put car in neutral and get out and rock car back and forth by hand. Tip will slip out and car should move. This will not fix the tip problem as they are crimped on and the crimp has slipped. I installed a master electrical switch and never put the trans in park. I start and stop car in neutral and use switch to shut of electrical. Costs $ 800 to fix trans as park rod is last item out of trans. Cheap solution for me as car is a beater and am driving until it quits. Best of luck.

Posted on Mar 29, 2010

johnjohn2
  • 5763 Answers

SOURCE: I have a 94 Pontiac Grand Am SE 5 speed standard

This sounds like it may be misfiring, the quad four engine is famous for misfiring theres a coil cover under the top plate where the sparkplugs go, if you remove the 4 bolts and pull it up you will see the sparkplugs and that cover will contain coils and coil cover and boots, i would replace the sparkplugs and the coil cover and sparkplug boots, heres some pictures of the parts, this is where i would start it a tune up, and also check air filter and replace fuel filter,johnjohn2_31.jpgjohnjohn2_32.jpg

Posted on Dec 10, 2010

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