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Common LS1 Firebird problems

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Old 06-08-2006 | 06:10 PM
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Default Common LS1 Firebird problems

what are the basic problems with a 02 trans am, Im new to ls1 and firebirds, I just switched over to the darkside.. anway I was reading that the rear eds are weak and- the roof swill bubble from the glue, what else are common problems, whats normally breaks, what are the weak points on modding the car...My plans are 02 trans am then do bolt-ons,and a procharger.Whats likley to go wrong...what are the limits on stock blocks,whats the limit on the trans, whats a safe hp that these cars can handle?
Old 06-08-2006 | 06:17 PM
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the a4 tranny sitn tos trong along with the 10-bolt axle. oil pump and water pump tend to go bad
Old 06-08-2006 | 07:50 PM
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Window motors, blinkers, and the most dreaded of all: the lid for the ash tray breaks off easily.
Old 06-08-2006 | 08:29 PM
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1. The gears for the headlight motors break
2. If you mod an M6 car the stock clutch will hate you.
3. on the 99+ cars the coolant temp gauge is useless
4. Everything stated in the posts above.
Old 06-08-2006 | 08:35 PM
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windows, headlights OIL PUMP
Old 06-08-2006 | 10:09 PM
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Here is the forum for you:
Pontiac Firebird 1967-2002
https://ls1tech.com/forums/pontiac-firebird-1967-2002-73/
Old 06-08-2006 | 11:08 PM
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Originally Posted by Tainted
the a4 tranny sitn tos trong along with the 10-bolt axle. oil pump and water pump tend to go bad
A4 tranny will hold up to a decent amount of power if it's properly modified/built.

The 10 bolt can handle a good deal of power in an auto trans car, so long as you don't get massive wheel hop.

Oil pump failures are not common, only a small percentage have failed.
Old 06-08-2006 | 11:11 PM
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Holy crap, maybe getting a 5.0 wasnt such a bad plan after all
Old 06-09-2006 | 12:35 AM
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Originally Posted by giant016
Window motors, blinkers, and the most dreaded of all: the lid for the ash tray breaks off easily.
Thats exactly what just happened to me. Funny thing is Ive never smoked in my car. I dont smoke and I sure as hell wont let anyone else smoke in my car. I dont know how it broke because I never use it. Anyone know how to fix it, because it annoys me that it broke?
Old 06-09-2006 | 12:46 AM
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It gets broken from storing crap like keys and change in it, lol
Old 06-09-2006 | 09:14 AM
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wow more than I expected, mustangs arent perfect either tho, How well does the stock ls1 block handle Hp, I know my stang stock 5.0 motor can only handle around 450rwhp, then its like playing with fire after that....Im planing on a procharger for the ls1, what is a safe boost to run on stock ls1 block?...Im not sure where to start on what parts are good for heads, For mustangs AFR heads are the best, what heads are best for the ls1, Is afr good on the ls1? what about lengenfelter(sp?) package, http://www.lingenfelter.com/pack_cf1998_350.htm#
I was think of starting with that then going with a procharger on top of it, then Ill be happy.
Old 06-09-2006 | 11:16 AM
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An LS1 on stock rods/pistons can handle over 500 rwhp. Just make sure you get a good tune. I wouldn't go over 8psi on the stock stuff, only because of the high compression.
Old 06-09-2006 | 11:17 AM
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Use the search button, it is your friend.
Old 06-09-2006 | 02:55 PM
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Your biggest concer will be neck injuries from constant sudden jerks of the neck to look behind to see all the mustangs and ricers your gona kill!!!
Old 06-10-2006 | 12:39 PM
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Originally Posted by Stanger88
Holy crap, maybe getting a 5.0 wasnt such a bad plan after all
5.0's definitely have their quirks too. Ignition switches, mad wheel hop, broken t-5s, shitty alternators, etc.

I honestly think just about everyone of these types of performance cars have consistent problems to them (domestic or not). Its just a matter of putting up with those in order to enjoy the performance.



Speaking of which, my passenger side window motor has been getting slower....and slower.....and slower....



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