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Car cranks over when cold and fires but will not run until the 5th or 6th try and depressing the accelerator.
Have replaced spark plugs, plug leads, dizzy cap, rotor not long ago. Found cracked vacuum lines and replaced, replaced air auxilliary valve, and checked cold start injector no leaks.
have had goop removed from throttle body, runs a bit better, but still no easy start as it used to when cold, once warm runs sweet as.
it is a 1979 244 GL auto, roughly 145k on the clock and does regular country runs in Western Australia 600k round trips. Two year ago had the head redone, not a problem until now and I have run ouot of where to look.
Answer -
check ignition wire connections and the coil ones too and all wire connections for tightness and any black wire ground wires on the engine, i'm not really an expert on the older volvo , did you change the distributor cap, thats very important.
Have replaced distributor cap in the first pass and checked all electrical and high tension leads. When warm and under load engine does not miss, and runs perfect - just the blasted cold start. Temperatures here are 6 - 9 Celsius in the morning and then 22 - 25 celsius the rest of the day. Could it still be a vacuum problem, engine seems to get to much fuel at the cold start thats why it stalls
Answerhere are the 4 things causing cold start problems: faulty cold start valve or thermal-time switch, fuel pump not running, air flow sensor plate rest position incorrect, fuel pressure incorrect, i would change the thermal time switch first--this part controls the extra fuel delivery when cold-as engine warms the cold start injector gets less fuel. i'm sure this part is your problem, if it was my car i would change it right away (THERMAL-TIME SWITCH) (the book shows it clamped onto one of the intake pipe, but is not part of the intake, should have wires going to it) then the cold start valve if that doesn't work, fuel pump is probably ok.
