Hi,
1990 Volvo 240, 205K miles. As the subject says, the car sometimes stumbles/hesitates when I acclerate hard from a stop. It almost seems like it's bogging down a bit. If I acclerate more, the rpms do not increase..the car barely moves forward. When this happens, I take my foot off the acclerator and then glenty push it and it then is OK. In the past 5K miles I've done the following
new Bosch AMM (warm air hose disconnected)
fuel filter
wires and cap (Bougicord, Bosch). Did not do spark plugs yet
air filter
cleaned throttle body
filled up tranny fluid, 1.5 quarts low.
waterproof fuse in engine bay
spun fuses (did not retension yet)
This issue happens when the car warm or cold. It idles great and drives wonderful once I'm crusing along. Like I said, it's a random issue that happens when I acclerate from a stop. I'm not braking hard, just normal braking.Maybe vacuum leak?? Coil? Power stage?
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