I need a new transmission in my van, and I will probably get one this week. This is a 2001 GMC Savana 1500 with the 4.3 and 4L60E. A few weeks ago, I replaced the valve body due to a code P1870. The new valve body fixed the problem, and I was able to pass smog. However, now that the transmission wasn't slamming into second gear, I noticed that second was slipping like an essobee. I parked the van for a couple of days, and thought, hey, why not try Lucas. Now, I know that something that you pour into your transmission can't fix a mechanical problem, but I needed to keep driving this van until I could get a new tranny. After three bottles of Lucas Transmission Fix, I've been able to drive it for a couple of weeks. I've already driven it today, and it works ...OK. If I stab the throttle when everything is warmed up, it slips. However, if I drive gently, I can go wherever I need to go, and freeway speeds aren't a problem. I usually drive in 3 rather than D.
So there you have it. I will no doubt become a BITOG pariah for having posted this, and also for not having a double-blind, peer-reviewed study to back up my experience, but it's working for me.
So there you have it. I will no doubt become a BITOG pariah for having posted this, and also for not having a double-blind, peer-reviewed study to back up my experience, but it's working for me.
