245 SUDDEN POWER LOSS
1924 Volvo 240
My 1980 245 DL was running great then sudden lack of power after getting down to 3/4 tank of gas. Thinking water in fuel, added quart of alcohol, no change; new plugs, checked cap and rotor, checked plug wires( between 5k and 10k ohms each), timing ok. Car still starts immediately as always, tightened manifold nuts a little but hard to reach some of these. When your driving and press gas you slowly speed up and hear put put put. Tried checking vacuum lines with benzomatic propane gas, no increase in idle. How many vacuum lines are on these 21f engines? My AC solenoid circuit is disconected, so then there are the two lines from under the cast aluminum maifold, trace these to the advance on the distributor and to the charcoal canistor then under the dash. Measured steady vacuum from the top of the manifold where the AC cicuit was normally taken, reads between 8 and 10 lbs. When I disconected the two lines from under the manifold there was no change in the reading, therefore assumed the lines connected where not leaking? Checked flame guard, ok. There looks like a small vacuum line next to the oil dipstick and the last cylinder lower intake manifold bolt, but it looks like its connected to a square rubber something. Under the center console there is a plastic vacuum bottle but looked like good shape, as were hoses. While under the driver side dash a 4 wire harness fell down not connected to any thing: round ivory connector (3/8 - 1/2 inch dia)with 4 female connections, black blue yellow red wires (what does this connect to)? I ried spraying some carb cleaner on some of the vacuum lines but no change. Haven't found a smoke machine to use for vacuum line tracing, any thoughts? Changed my lamda sond relay and fuel filter on the firewall, no change. Am I missing a vacuum line? Thx :D
July 4, 2006.
July 4, 2006.
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