Questions & Answers for: Volvo 740 rough start

...rough to start it. other than that it runs great! even your freind adjust it it should run deal the timing later,check if you have spark,then check it if you have gas coming in,the way you describe ...

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...started searching and the fuel relay makes a click and as soon as it does that the car idles really rough, chokes and then dies so now my question is, 1. could it be the relay?- it get kinda hot but ...

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start running rough dies, re-start several times over next 15 minutes still rough, then starts running fine for about 200 miles then repeats. clean the throttle then the throttle switches will need to

...start shuts down after a couple of seconds. sounds rough in the couple of seconds it runs. was running perfectly 1/2 hour earlier. Replaced fuel pump relay checked fuses. A few things that come to ...

...rough like flooding. after it cleans itself out it runs fine again for a while then does the same thing over. check the wireing harness for the insulation falling off the wires and shoting. also ...

Question about 1991 740

2 Answers

...It starts and takes off in 1st and 2nd but is sluggish and feels like its switching gears really rough. It seems to get stuck trying to go in to 3rd. The rpms will go up to 21/2 or 3 and then it ...

...Start by checking the automatic transmission fluid level hot. You may want to take this to a local Volvo dealer to have the transmission serviced first. Usually when the transmission slips, shifts ...

Question about 1991 740

1 Answer

...times to run idle goes up/down changed the wires runs well until stoped idle's at 750-800 rpms roughly You describe a vacume leak in a hose off or cracked. look around good in and quite place ...

89'volvo, car starts rough but after running for 5-8 min it stalls out and won't restart. i have replaced the internal fuel pump and fuel pump filter. could it be a fuel relay switch or other?

Question about 1991 740

1 Answer

...start I would check and clean all wires leading to and from the coil module. Sometimes the high voltage lead gets dirty or corroded. Remove each connector plug (one at a time) spray a little contact ...

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