Hello, fairly new to LVC. This is only my second post. I have a 94 Mark 8. No engine codes. The car recently decides to rev high as if the TPS or throttle is stuck. My tach is not functioning (almost a year) so Im guessing its revving at about 2500 to 3500 rpms. It starts fine, regular rpms and idle is fine. It just eventually revs high while Im driving. It is accompanied by a higher coolant temp (little bit above midpoint) that very slowly rises. Never to the overheating point but possibly if I kept driving. Im assuming that is because of the trans fluid being worked thru the unrested tranny. Sometimes it will roughly drop down to the ideal rpm (700 rpms) upon stopping at a red light, but less often than not. The only fix is to park it maybe an hour, and again everything is normal. Ive checked the throttle cable and gas pedal. No kinks, no slack, not stuck. Throttle body seems fine, no linkage issues, no gunk or buildup preventing butterflies from closing. Intake tube gasket ok also. Unplugged idle air control valve to verify correct operation. Car died when I did so, and I think that means the iac valve is functional. Overall I did a spray test to check for vacuum leaks and found none. So, is this a vehicle speed conrol issue (recall), tranny problem, or something else? Can the TPS be faulty and not throw a code? Any help or tips would be appreciated.