Question about 1993 Volvo 940

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Ok,I've a 1993 volvo 940 (non-turbo) recently the engine was change,and now won't start,sparks plugs,sparks,cap,rotor,fuel pump relay,coolant sensor have been change,oil and filter too.the car won't start,it turns and I've already check the cam and it rotate,I get spark and fuel pressure its good.Sometimes the engine start but it will keep runing with your feet on the acelerator,once you step off it will die and it won't start at all.I'll apreciate all the help you can give me,Thanks

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Perhaps the Carburettor just needs a clean of all the soot and old oil build up. Go to a motor factors or ebay and get some Carb cleaner. 
Find Two pieces of old rags. 
And an old chisel or wide screwdriver.
With the car engine OFF.
Undo the air pipe attached to the side of the Carb. Get a small piece of rag and open the vent fin carefully . Put a piece of rag just to top anything going down into the inside of the Carb. 
Spray some carb cleaner around the inside circle and clean the excess build up of oil . Remove the rag and rap a bit of it around the head of the chisel or screwdriver. 
Open the fin carefully again ... 
Spray some carb cleaner in one side and whilst holding the fin open with your finger start wiping the inside with the rag on the chisel . Wipe as much of the excess oil build up as you can safely do until the inside if the carb is clear as possible. 
Give it another spray with the carb cleaner . 
Start your engine up and give it a bit of throttle. 
Knock the engine off again and replace the Air pipe securely.
Every few fill ups of fuel put in some Petrol Cleaner . 

This did my wife's S40 really good.

Posted on Feb 07, 2015

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Issue with Gaz Line transportation.. Check input Gas Line... Take Off Gaz line from Carb Start engine see if gas came out if yes..Check your intake carb for Durt inside the line ...Also chek all your Vaccum Line and sensor Volvo are sensitive for Vaccum lost and The Carb need it ..Also if it Fuel injection... Check for Ignition Control Box for Malfunctioning Relay ...good luck

Posted on Oct 07, 2010

  • xetpirc Oct 08, 2010

    Yes its a fuel injected one,Thanks

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