- #639 of 1497
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1999 silverado o2 senser
by petel2404
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Sep 12, 2005 (4:31 pm)
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Hi im trying to take off my catalitic coverters so i can get better gas milage but i was told it would screw up the o2 sensers and was wondering if anyone knew how to get around that?? because it has a senser before and after each converter all suggestions wanted thanks
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- #640 of 1497
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California emissions problem
by scocks
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Sep 12, 2005 (5:25 pm)
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Not sure this is the right place to post this, but I bought a 2005 Silverado 2500 HD out of State and tried to register it in California. Am told it is Federally certified but not California certified emissions standard. Didn't even know emissions were an issue for diesels. Help! Please. Is there a way to make it California compliant?
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- #641 of 1497
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Re: California emissions problem [scocks]
by kcram HOST
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Sep 12, 2005 (5:28 pm)
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Replying to: scocks (Sep 12, 2005 5:25 pm)
Only way to make it California legal at this point is to put 7500 miles on it while registered in another state. Without a factory certification label, it is not a Cal-spec truck, even though the engine is 50-state legal.
kcram - Pickups Host
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- #642 of 1497
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Re: Front end allignment / Tire chopping [acuraman4u]
by pc59
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Sep 12, 2005 (6:29 pm)
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Replying to: acuraman4u (Aug 24, 2005 5:27 am)
I have the same problem with my 1500 Z71 crew cab. My dealer rotated and alined the tires at 6,000 miles. By 7,500 miles I could already see that the front tires which used to be the back tires were starting to chop. I took it back to the dealership and they told me they had never seen anything like it. They had an other tire shop do an alinement because they thought theirs may be off. I now have over 9,000 miles and it seems to be getting worse. I notice it the most on the concrete freeway. It feels like I'm on a bad dirt road that has been washed boarded. Do you think it's the tires or something wrong with the front end? I also have problems with the brakes pulsating.
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- #643 of 1497
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Re: Ticking noise in 1st gear [park11]
by geo9
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Sep 12, 2005 (11:49 pm)
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Replying to: park11 (Sep 12, 2005 8:30 am)
Park............There is NO speedo cable in the new GM trucks.
Could it be a relay clicking?
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- #644 of 1497
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Re: California emissions problem [kcram]
by scocks
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Sep 13, 2005 (6:40 am)
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Replying to: kcram (Sep 12, 2005 5:28 pm)
Unfortunately, the DMV won't let us EVER register it - even if we put 7500 miles on it as an out-of-state vehicle - because we were California residents when we purchased it out of state. There must be a way to make it a Cal-spec trust AND get a factory certification label.
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- #645 of 1497
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Re: 1999 silverado o2 senser [petel2404]
by jjtj
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Sep 13, 2005 (6:45 am)
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Replying to: petel2404 (Sep 12, 2005 4:31 pm)
You can buy O2 simulators.. a company called Curtis makes them.. not sure if they have them for the Silverado but they basically plug into the O2 bung & factory wiring harness to fool the computer, and will prevent your check engine light from coming on. However, late model cats aren't that restrictive, and you will probably get better performance & mileage out of your truck by leaving the cats & O2 sensors in place. O2 sensors will allow the engine computer to adjust the fuel/air ratio accordingly, so it won't run too lean or rich.. no O2 sensors will most likely mean lower fuel mileage.
Plus I believe it's against federal law to remove the cats, and if you have a local inspection or emissions check, no catalytic converter will fail your truck.
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- #646 of 1497
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Re: Ticking noise in 1st gear [geo9]
by park11
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Sep 13, 2005 (7:32 am)
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Replying to: geo9 (Sep 12, 2005 11:49 pm)
I just took the truck to get inspected at a GM dealership. The service advisor went with me on a test drive (he drove). He spent a good 15mins listening to it.He said the noise is coming up from the transmission. It only happens in first gear. He said this was normal and even some new trucks make this noise. He mentioned something about how the first gear meshes.. or something like that and that is the noise I'm hearing. I must admit the slight clicking/popping/scratching noise in first gear is tolerable, but I just needed to know that it wasn't a defect or problem that would destroy my transmission.
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- #648 of 1497
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Re: Front end allignment / Tire chopping [acuraman4u] by pc59
by shiftless1
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Sep 13, 2005 (12:36 pm)
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Perform a serious check of your front shocks. Probably defective from the factory!
Ed
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