A couple Problems on my 93 ssei

[epicpwn]

well i got my bonnie started today and the exhuast right after the cat get red hot all most orange and i know when my freind had the car before me when you turned the car would make a bong sound hope some one can help me out thanks for your time

[alec_b]

It's running very rich if the cat is getting that hot, meaning it's not firing correctly. How does it run? How long has it been sitting without running?

Also, to make it easier for us to help you, try using punctuation and complete sentences. It just helps make it a little easier to understand in type.

Thanks and welcome!

[00Beast]

Could be a bad O2 sensor, or a bad cat. Or both.

[epicpwn]

it seems like its runing ok its been sitting all most a year i think maybe less. well if its running rich how could i change it? also the o2 sensor is new.

[00Beast]

Give the stuff on this list a good look over. Could be part of your issue, especially plugs and wires. Then we can go from there.

Brand Suggestions are in the parentheses.

• 1987-2005 Bonneville / Buick 3800 Maintenance List
  
  Run Seafoam through gasoline and intake every 5,000 miles. One pint of Seafoam in a half tank of fuel is a good mix. The intake is optional, but recommended.
  
  Grease: Ball Joints, Tie Rods Every 8-10k ( Green Grease recommended)
  Air Filter Every 15k (Amsoil EaA, Purolator PureONE)
  PCV Valve Every 30k
  MAF Sensor Element Cleaning/TB Cleaning Every 50k viewtopic.php?f=48&t=1661
  Fuel Filter Every 15-25k (Purolator, AC Delco, WIX)
  Spark Plugs Every 30-50k (NGK TR55 or Autolite 605) (Never Bosch)
  Ignition Wires Every 30-50k (Napa Belden, AC Delco, Autolite Pro, NGK) (Never Taylor or Bosch)
  Oil & Filter Every 5-6k or Every 6 months (Mobil1 or Amsoil)(Mobil1, Purolator PureONE, Amsoil EaO or WIX) (Never Fram) viewtopic.php?f=45&t=214
  *Conventional Oil Every 3k/3 months(Pennzoil with a WIX (Napa), Delco or Purolator filter)
  Transmission Flush Every 15-20k (Always make sure filter is changed when flushed)
  Cooling System Flush Every 25-50k or 3-5 Years (Peak or Prestone Green Coolant Only) (Never Dexcool)
  Oxygen Sensor Every 80-100k (30k for non-heated) (AC Delco or Denso) (Absolutely never Bosch) viewtopic.php?f=48&t=794
  Accessory Belt Inspect every 15k, replace every 100k, or as needed
  Cabin Air Filter Inspect and Replace every 15k, or as needed in dusty conditions. (Note: 00+ Only)
  Evap Core Cleaning Whenever Needed (Note: 99 and older only) viewtopic.php?f=45&t=2432
  
  *Special Considerations*
  All 3800s, LG3, LN3, L27, L36, L26, L67 & L32, especially important on vehicles factory installed with orange Havoline Dexcool Antifreeze/Coolant: http://www.dex-cool.net/
  Lower Intake Manifold Gasket Replacement, every 80-100k (ignorance of this can allow coolant to enter your engine oil, this happening can cause irreversible lower engine damage, requiring replacement of subject engine)
  
  Series II, Naturally Aspirated, RPO:L36:
  Upper Intake Manifold Plenum Replacement, Every 80-100k (ignorance of this can allow coolant to enter your intake manifold, possible damage to occur can be hydrolock, irreversible damage to emissions devices, misfires, etc. Most times, engine replacement is required if ignored long enough.) viewtopic.php?f=53&t=1061
  
  Series I, II, III RPO Code L67 & L32:
  Change Supercharger Oil; Every 30-50k. (Intense Racing or GM Dealer) viewtopic.php?f=56&t=1690
  Supercharger Belt; Inspect Every 15k, Replace Every 100k or as needed.
  
  Rev. 11/21/09 By 00Beast

[Roadrunner]

If your car was sitting for a long time, the fuel could have gotten nasty - possibly causing an injector to stick.

Otherwise, I once had a similar problem when one of my ignition coils was going bad and giving weak spark. Was scratching my head for a while until the coil got bad enough to positively confirm that it was the problem.

[1fatcat]

Does the car have any power and does it shift properly? If not, the catalytic converter may be restricted. If it is, you would have to replace it.

[epicpwn]

i drove it around the farm today it shifts good has power but its smells like its running rich the exhuast smells like gas. All the spark plugs and spark plug wires and a new o2 sensor and all the coil packs are new. the exhuast is new when they did it they said the cat look good so they didnt replace it and yes its been siting without running

[1fatcat]

Try some fresh premium gas first and see what happens.

[epicpwn]

well i was looking for more about why the cat would get so hot and one was that the motor is dumping raw fual in to the cat but why idk

[1fatcat]

The cat's job is to get hot, very hot. The honeycomb material inside is supposed to store heat from the exhaust. Once the cat is fully warmed up, it will be hot enough to burn any unburned fuel that may have left the engine. This is done for emission reasons, because unburned fuel is harmful to the envuironment. If the cat has to burn too much unburned fuel from the engine, it can get red hot. If your gas is old it may not be burning completely, leaving a lot for the converter to take care of. So, some fresh fuel may be all you need? There are lost of reasons an engine can run too rich, but you should start with fresh fuel so the engine CAN burn it better, then go from there if it is still getting too hot.

[epicpwn]

good point i wish i knew more about engines myself but im more on the body man side thanks for the help ill me messing with the car more today

[epicpwn]

also would a partly cut spark plug wire do the same thing to the cat?

[92BonneSE]

If the spark plug wire is cut, it could not be giving that cylinder any spark. That could be causing it, either way I would replace all the plug and wires if there is a cut in one of the wires.

[epicpwn]

well i replace all of the spark plug wires sounds better but its still getting hot but i did find a good place to get a cat zzp $65 bucks for a magna flow cat

[epicpwn]

i fixed the cat problem 2 spark plug wires were mixed up so who ever did them befor eme *fook* it up so thats fixed now i need to look at the suspension

[92BonneSE]

Whats wrong with the suspension?

[epicpwn]

it makes a poping noise when you run it to the right and it pulls right when you turn left i have no idea what it is i looked at it today and everything seemed fine just the top suspsion plat was rusted a bit so idk