Car won't go past 30 mph. It seems as though it won't catch the next gear. When I get up to 30 it just revz as though it is in neutral but when it goes back down to 25 or so I can go up to 30-35 again
I did an transmission oil/ filter change
hoping that was the problem but it still
continues to do this.
It may a clogged catalytic converter. If so, it will not allow the engine exhaust to process through.
I had a very similar problem with my 1987 Mercury Grand Marquis. Driveability in lower gears (below city speed limit) was normal. However, speeding up e.g. on the highway was not possible any more. I needed a general overhaul of my automatic transmission. Most of the coupling elements inside the transmission housing were worn out and burned. If you have the same problem, a filter change and oil renewal won' t help at all.
Car won't go over 30 mpr want to do
Push fuel filter reset button in the trunk brought $ 500 worth of parts and that's all it was
Looking for a Used Grand Marquis in your area?
CarGurus has 1,216 nationwide Grand Marquis listings starting at $1,400.
Search Mercury Grand Marquis Questions
Mercury Grand Marquis Experts
Related Models For Sale
Used Cars For Sale