1999 Tahoe 190k miles 5.7L 4L60E
Codes: 1860, 1870, and bank 2 lean code
I got the exhaust repaired, crack near front right oxygen sensor, complete break before aftermarket 2 into one muffler, complete break after muffler to fixed with just a Y pipe for now until I get a muffler or just a stock cat back exhaust. I reset the computer by disconnecting the battery for a minute; that made it louder for some reason. After a couple days of use I got the three codes listed, cleared them and got just the 1860 code listed twice. I had a noticeable vibration about a year ago; after replacing the rear driveshaft and it's u-joints it was better. (The driveshaft had hammer shaped dents near u-joints, not very deep roughly 1/8" deep at worst. Newer u-joints found in old driveshaft that were tight but it actled like a nice new tight u-joint not like a stuck u-joint or a loose u-joint.) The vibration is back but only past 65mph and not as strong. I replaced the front u-joints since one was stuck and that removed the vibration for a day but it returned. (The front driveshaft doesn't appear to have dents.) When the check engine light is on I loose more speed on the hills and take longer to get up to cruise speed. Is there a good way to check the resistance of the TCC Solenoid? I can do it with the transmission pan off but I'm hoping there's a connector up by the computer I can check. I read it should be 10-11 ohms, is that correct?
Codes: 1860, 1870, and bank 2 lean code
I got the exhaust repaired, crack near front right oxygen sensor, complete break before aftermarket 2 into one muffler, complete break after muffler to fixed with just a Y pipe for now until I get a muffler or just a stock cat back exhaust. I reset the computer by disconnecting the battery for a minute; that made it louder for some reason. After a couple days of use I got the three codes listed, cleared them and got just the 1860 code listed twice. I had a noticeable vibration about a year ago; after replacing the rear driveshaft and it's u-joints it was better. (The driveshaft had hammer shaped dents near u-joints, not very deep roughly 1/8" deep at worst. Newer u-joints found in old driveshaft that were tight but it actled like a nice new tight u-joint not like a stuck u-joint or a loose u-joint.) The vibration is back but only past 65mph and not as strong. I replaced the front u-joints since one was stuck and that removed the vibration for a day but it returned. (The front driveshaft doesn't appear to have dents.) When the check engine light is on I loose more speed on the hills and take longer to get up to cruise speed. Is there a good way to check the resistance of the TCC Solenoid? I can do it with the transmission pan off but I'm hoping there's a connector up by the computer I can check. I read it should be 10-11 ohms, is that correct?
