My wife uses our 74 164 as a daily driver.I usually keep it tuned up ie.points,plugs ,basic maintenance etc. Lately shes been complaining about hard starts after the car has been run and warmed up or even after it has sat for a couple hours. Also she claims it sometimes hesitates badly with loss of power. Anybody experienced these symptoms on their 164's? Cold start injector? What's the easiest way to test? Leaky injectors...how can I tell? Vacuum leak...is this just a matter of checking all the hoses? Someone suggested" disconnecting the thermal time switch behind the exhaust manifold " for a similar problem on a 75 164. What does this do? Any help appreciated. These are great cars.