Question about 1992 Volvo 240
Repairs/maintenance in the last 3 months: new muffler, oil change, brake job.
Problem: Idles hard, engine shakes, OK if idled high, press accelerator when in drive and engine stutters and accelerates but stutters again.
First noticed: Drove it in hot weather in stop-and-go traffic for 30 mins, then normal speed traffic for another 30 mins, parked the car, and tried to start it in the evening (no longer hot, cool ambient temp). Car was idling hard, difficult to start at first.
Actions: Looked for loose hoses or connections in engine but none spotted. No fluids leaking. Gas tank was full.
NOTE: During the second 30 minute drive -- toward the end -- I heard a sound coming from engine, as if wheel had kicked something into the wheel well. No sounds or problems following.
Seek good repair shop, too many possibly problem, Sometimes that's the best money spent.ask for a one hour diagnostic check.
Posted on Sep 28, 2009
Sounds like there is a problem with one or more of the following systems -
Vacuum lines or manifold leak
EVAP system leaking or blocked
Fuel system filter dirty
Internal and/or External fuel pump malfunction
fuel injectors dirty / corroded electrical connectors
idle control system malfunction
Ignition base timing / timing advance control malfunction
O2 sensor malfunction
My reccomendation? Tune it up, put BG 44K through the fuel system, replace the fuel filter, clean and ispect all wiring, set the base timing, and then inspect for vacuum leaks. hope this helps you.
Posted on Nov 03, 2009
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Posted on Jan 02, 2017
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