Question about 1998 Pontiac Sunfire

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I need the undercarriage diagram for my 1998 pontiac sunfire. There is a loose metal piece that rattles when the car accelerates over 2000 rpm.

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: Installation (wire diagram) for remote starter on a 2001 Pontiac Sunfire

try going to diy rattler.com

Posted on Nov 15, 2008

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3mac
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SOURCE: 1998 Pontiac Sunfire won't accelerate

I assume that you do not have a "check engine" light?

The next thing I would do is check the pressure from the fuel pump. You can have this done at your preferred garage, or by purchasing a fuel pressure gauge from any parts store.

Vent the fuel tank vapors by loosening the fuel cap. Remove the electric fuel pump fuse and start the engine. Allow the engine to run until it runs out of fuel and stalls. After spinning the engine over for a period of 3 to 5 seconds, turn off the ignition switch and install the electric fuel pump fuse. Next, install a fuel pressure gauge in the fuel rail supply line, and secure the fuel tank cap. With the ignition key in the on position, verify that no leaks are present and start the engine. Visually verify the PSI reading on the gauge. The pressure for your vehicle should be 41-47 PSI (Pounds per Square Inch). Hope this helps and good luck!

Posted on Jan 13, 2009

  • 1 Answer

SOURCE: 2001 pontiac sunfire serpentine belt diagram

go to autozone.com and it will give you the belt diagram

Posted on Jan 16, 2009

  • 1 Answer

SOURCE: pontiac sunfire

I had that problem last year. I bought a new starter but it was not the correct one for my car. For the 98 there are two different starters. I bought the wrong one the first time. My step father started to put it one and realized it was not the same as the one he just pulled off. Ending up taking it with us when we returned the orginial one I bought. The orginial one I bought was about $70 the correct one was $400. The auto store did not have the correct one listed as a replacement part. Until the number off of the part was keyed into the system and found out that it was just not the common replacement part.

Posted on Feb 15, 2009

  • 1 Answer

SOURCE: How to change spark plugs in a 1998 Pontiac Sunfire GT

gt will have a 2.4L DOHC their beneath the cam cover right ontop

Posted on Mar 07, 2009

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I had a similar issue with my Windstar van. Both the owner and chief mechanic drove it and reported hearing a "tic" in the engine. Solution? With fuel down to 1/4 tank, added Lucas upper cylinder lube and filled up with premium. Big improvement but I repeated the treatment with regular fuel just to be sure.

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The rattle (noticed at times under hard acceleration) is the cause of gas shock on the upper part of the engine loosing charge, in-turn causing the engine mounts extra stress and thus metal vibrating/rattling together.
The knocking (over bumps, etc. if you have noted that) is caused by worn bushings, most likely worn sway bar end links (you will see the links looking at the undercarriage, on both sides, they are a little steel "bars" with threaded ends on a 90 deg angle held by bushings e.g. example of front sway bar links ).
I noticed these noises coming on (at various times) at about ~140,000km or ~67,000mi and drove the car as it was until ~300,000km when i sold it (as is). Annoying noises.... yes... did I turn up the radio and carry on driving this car, not "fixing" anything (and I mean not a single $ spent on it aside from maintenance) and then sell the car... yes. The choice is yours.

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The problem is in the ignition cylinder lock.
The body control module (BCM) is what controls the theft deterrent system on the 2000 Pontiac Sunfire.
It can be reprogrammed, but is complex to do.

Here are some pictures for you.
http://www.autofuseboxdiagram.com/4232-2000-pontiac-sunfire-2-2-fuse-box-diagram/

http://www.automotix.net/usedautoparts/2000-pontiac-sunfire-chassis_computer-inventory.html?fit_notes=e1360a49a192739e006f059ad1d62904&seq_num=8

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When the car is cooled off bang on the exhaust. It's possible you have a heat shield that is loose. Let me know if you have any questions and I'll do my best to answer them. Thank you for using FixYa.com!

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Ranover something in my 1998 pontiac sunfire 4 door & besides the radiator and some bar in front of the radiator being bent in half there is a gaping hole in the bottom of some casted metal. seems...


sounds like you need a new car.
I am thinking the 'casted metal' is your engine (possibly a motor mount tore loose in the ,er... incodent).

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Hi if you have the metal intake there is a torx screw adjustment behind the plastic cover for throttle cable. in = more idle rpm and out =less rpm hope this helps


Ray

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