Cadillac Seville / Cadillac Eldorado Forum Discussion, 97 Seville stumble in Past Cadillac Vehicle Discussion; My 97 Seville has started a slight rough idle and a "stumble" on acceleration. I've been through the plug wire/spark ...
My 97 Seville has started a slight rough idle and a "stumble" on acceleration. I've been through the plug wire/spark plug hesitation. This is something different. This feels like a carburetor flooding. Any ideas?
I did get a new key... It since developed a strange acting overheat problem. Didn't act like a thermostat or a leak or a clogged radiator. It would just flow out of the overflow after you drove it a fairly long distance. Thinking the worst, I used a CO2 block tester with negative results. (WHEW!!!).
I decided to go after the "miss" thinking it was overworking the engine causing the overheat. I dug out my old inductive timing light and checked the individual wires. Some of the wires were eratic so I threw a set of wires at it. With no improvement I tried replacing the coils. No more hesitation and the cooling problem seems to have disappeared.
Gotta love these cars. Nothing acts normal.