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Pffft, I’ve had a 3800 for 7 years, I could not destroy that engine, the head gasket was probably a work in progress for at least a year if not more. Not to mention they arn’t bad to work on, up until you want to change out the plugs >.<
Also, when I say the O2 sensor is black, I mean on the outside, not in the actual exhaust. I havn't pulled that off yet as I'm unsure what the exact issue is. But I was also under the impression that a bad cat, the output voltage on the O2 sensor will bottom out quite frequently causing issues. Course the front could be slow switching and causing the code.
Ace, another question. Is it true that GM cars don't like Non-GM parts. I know with plugs on that engine that if you don't use OE plugs (I.E. Plat/Iridium) that you will wind up fouling them frequently with copper plugs due to that crazy emissions control setup they have. But there is talk of non AC-Delco parts (namely O2 sensors) not holding up very long. I know the front was replaced at some point, not sure on the back.
It might help us diagnose if you were a little more descriptive of the “No-Start” condition?
Do you have power to all accessories?
Does the engine turn over?
If the engine doesnt turn over, what do you hear? No turn and a click indicates starter problems. Double
check connections. If connections check out, pull starter off and test at a parts storeIf the engine doesnt turn over and no click with full power, check key switch, relays and all wiring to the the starter solenoid.
If the engine partially turns over, test battery. Replace if necessary. If the battery checks out or replaced and still wont crank but partially turns over, see starter
If the engine turns over but fails to start, then look at computers, ignition modules, fuel, ect ect.
It might help us diagnose if you were a little more descriptive of the “No-Start” condition?
Do you have power to all accessories?
Does the engine turn over?
If the engine doesnt turn over, what do you hear? No turn and a click indicates starter problems. Double
check connections. If connections check out, pull starter off and test at a parts storeIf the engine doesnt turn over and no click with full power, check key switch, relays and all wiring to the the starter solenoid.
If the engine partially turns over, test battery. Replace if necessary. If the battery checks out or replaced and still wont crank but partially turns over, see starter
If the engine turns over but fails to start, then look at computers, ignition modules, fuel, ect ect.
Yes, flipping the mounts is what I plan to do. Like said, there is play, and who knows what it can do to an flange gasket, also its annoying while driving.
Yes, flipping the mounts is what I plan to do. Like said, there is play, and who knows what it can do to an flange gasket, also its annoying while driving.
I’ve seen the video, but its on a 20 year old subaru, not a 9 year old impala, its easy to see that one is bad with the fast switching downstream O2 sensor. On the exhaust leak possibility, I suspect if I were to have one, its going to be where the manifold connects to the tail pipe assembly and constant rocking motion has eaten into the metal gasket. I hope to fix that on Turkey Day and turn the rubber portions up so the engine stops moving like that. Very annoying.
RE: the transmission, The Wiki article wasnt clear on what all the police package came with, but one would think they would beef up the transmission on a police interceptor, its a N/A 3800, so it stands a fair chance that its the regular transmission. Its just an extra I wouldn’t mind having making it more difficult to kill the transmission.
I’ve seen the video, but its on a 20 year old subaru, not a 9 year old impala, its easy to see that one is bad with the fast switching downstream O2 sensor. On the exhaust leak possibility, I suspect if I were to have one, its going to be where the manifold connects to the tail pipe assembly and constant rocking motion has eaten into the metal gasket. I hope to fix that on Turkey Day and turn the rubber portions up so the engine stops moving like that. Very annoying.
RE: the transmission, The Wiki article wasnt clear on what all the police package came with, but one would think they would beef up the transmission on a police interceptor, its a N/A 3800, so it stands a fair chance that its the regular transmission. Its just an extra I wouldn’t mind having making it more difficult to kill the transmission.
While I’m not a mechanic, but it sounds like 3 possible things. With a new brake job its very possible to have air in the lines, that might cause it. Swelling in the rubber lines as suggested is another one. Usually though its the master cylinder.
Brake Booster is for assisting the driver and using less force at the pedal to achieve high pressure at the calipers/slave cylinders.
While I’m not a mechanic, but it sounds like 3 possible things. With a new brake job its very possible to have air in the lines, that might cause it. Swelling in the rubber lines as suggested is another one. Usually though its the master cylinder.
Brake Booster is for assisting the driver and using less force at the pedal to achieve high pressure at the calipers/slave cylinders.