Hey all - new to the forums and looking for some insight. I've been driving my sister's '99 Tahoe which I don't know much about. It was overheating, so we took it in to be looked at and ended up with a new radiator, which had cracked. They said the lines were rusted, but managed to get them off. The reason I mention the lines is because 5 days later the transmission went out. My question is, could there be a correlation? Only thing that seems to connect the two is the cooler lines. Obviously, I'm not a car guy...
Here's the more detailed story... Two days after the radiator was replaced, I drove it about 20 miles out of town. It was fine up until the drive home. As I was coming to a stop, I heard a metallic "clunk" and the truck sort of jerked/shuddered, like the brakes grabbed too tight. This also caused the check engine light to come on, but that's been going on and off for months. Anyway, when I proceeded to accelerate (gently) the truck jerked forward. The rest of the drive home was smooth, and no other problems for a few days. My sister takes the freeway to work, so there was some decent driving between that incident and this next one just 3 days later. I was entering fast traffic after a full stop, so hit the gas pretty hard, then suddenly heard a clunk again. The RPMs shot up, but no acceleration. I eased the gas and managed to get it into gear, but the rest of the way home it seemed to have trouble leaving 1st gear. Then, after parking in a lot, discovered there is no reverse. I got it home and haven't driven it since. I checked the fluids - all good, right level, right color, not burned.
Google research tells me it's the sun shell. At 230K miles, I get the feeling my sister is lucky this didn't happen sooner. But could this be related to the radiator replacement? It just seems too coincidental... Any thoughts are appreciated!!! Thanks!
Here's the more detailed story... Two days after the radiator was replaced, I drove it about 20 miles out of town. It was fine up until the drive home. As I was coming to a stop, I heard a metallic "clunk" and the truck sort of jerked/shuddered, like the brakes grabbed too tight. This also caused the check engine light to come on, but that's been going on and off for months. Anyway, when I proceeded to accelerate (gently) the truck jerked forward. The rest of the drive home was smooth, and no other problems for a few days. My sister takes the freeway to work, so there was some decent driving between that incident and this next one just 3 days later. I was entering fast traffic after a full stop, so hit the gas pretty hard, then suddenly heard a clunk again. The RPMs shot up, but no acceleration. I eased the gas and managed to get it into gear, but the rest of the way home it seemed to have trouble leaving 1st gear. Then, after parking in a lot, discovered there is no reverse. I got it home and haven't driven it since. I checked the fluids - all good, right level, right color, not burned.
Google research tells me it's the sun shell. At 230K miles, I get the feeling my sister is lucky this didn't happen sooner. But could this be related to the radiator replacement? It just seems too coincidental... Any thoughts are appreciated!!! Thanks!
