Author: Elwood P Dowd
Cruise control troubleshooting
I’ve got a 87 Diplomat SE that the cruise is not working in. Speedometer works fine so I’m assuming the speed is getting through it and too my speedometer and there is a strong vacuum coming from the power brake booster. Anyone have any tips for troubleshooting these things. I have to admit with all I’ve done to vehicles I’ve never had to troubleshoot a cruise control system and I’m a bit stumped as to where to start here. I appears there are only 3 wires going to the unit under the hood. Is…
87 Diplomat surging
So I picked up this diplomat a few weeks ago and I’ve been trying to get her all straightened out but there is still one issue I’m having that I can’t pin down. Rolling down the road maintaining a constant speed I get this light surging feeling. The car is so quiet that I can’t really hear any perceptible rpm change but I can feel it. Not a lot just subtle. I can’t find any vacuum leaks but I have a hunch it’s ignition related. It still has the factory lean burn on it and the vacuum line…