Chevrolet Venture Forum : “1998 Chevy Venture Thermostat”
1998 Chevy Venture Thermostat
Bovan:
Thank you very much for your response! I found similar documentation yesterday online. However, I spent 6 hours under the hood trying unsuccessfully to remove the thermostat on a 3.4 liter engine. There is a pipe with a sheet metal cover over it that runs across the engine and through the firewall. Could be part of the exhaust system. Without removing that pipe it is impossible to get a socket (9/16) to get on the bolt. You can get a wrench on it, although you cannot see the bolt, but tou may have less than an inch of space to operate. Any help would be appreciated!
I just changed the thermostat in a 2001 3.4 litre Venture. Four hours. It was not easy. I had to remove the rubber boot for the intake and use a 13mm open end wrench and keep flipping it over for 1/12 turns. The top bolt was easy, the bottom one was slow and tedious. It was hard to put the lower bolt back in. I had to make an open end sheet metal holder to get it in place and press it in with a long screwdriver while turning the wrench. There must be an easier way but it was not obvious. The bolts for the sheet metal over the exhaust were rusted and would have broken off . Good luck. Prepare for lots of patience. I would be interested if someone has a better way.