Question about 1998 Volvo S70

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Fuel problem Hard starting, once started runs great unless you stop, then it will stall and is hard to start

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Check for problems with the mass airflow sensor, oxygen sensors, and coolant temperature sensor. If the mass air sensor is bad or malfunctioning, it can cause the computer to add too much or too little fuel and create a problem (ditto for the oxygen sensors). A coolant temp sensor that is going bad may tell the car's computer that the car is cold when it isn't, and if so, the fueling will be wrong.

Posted on Jul 21, 2008

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Posted on Jan 02, 2017

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What would cause you to lose fuel pressure while driving.


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DI have a 1983 ford f250 with 6.9 diesel engine. The previous owner told me that the front fuel tank did not work; he said that he was running the truck on the front tank once and that the truck started...


have you looked into the injectors, or injector balance? glow plugs just preheat the cylinders before you start turning the engine over. if the injectors are dumping too much fuel it will run rich and blow black smoke, lean it will dump white smoke, same as if it has an internal coolant leak, but smell different. Ford has had problems with EGR systems on some of their diesels, being an older truck how many miles is on it? and the front fuel tank could have a bad fuel pump, pretty common for them to do what you have described. Also might want to have the timing looked at on it! It ignites off of pressure, and if the timing is off it will adversely affect the ignition of the fuel which will make for hard starts, and poor running. there is a lot that needs to be looked at to figure this one out! could be quite a few different things. Good luck!

Nov 20, 2013 | Cars & Trucks

1 Answer

Van sputters when you put it in gear after its been started multiple times


Bad fuel pump, stopped up fuel filter, mabey? First check for vacume leaks.... may try unplugging the throttle position sensor. Plug it right back in... just check the connection.

Aug 02, 2017 | 2002 Kia Sedona

1 Answer

1994 250 econline stalls when come to a stop


I would try changing the fuel filter first just to rule it out. If that doesn\'t help, I would check the TPS. Throttle positioning sensor. How does it start? Does it idle ok when you start it in the morning? If you live in a cold climate, watch these fueling stationsthat load their gas up with ethanol. It\'s hard for filters and fuel pumps. You can buy a once a month additive however Let me know how you make out

Jan 10, 2013 | Cars & Trucks

1 Answer

I have a 1994 wrangler.must crank starter multipul times for fuel to reach fuel rail on 2.4 or 2.5 4 cyl.Once finally starts will run great all day and start.Next day starts hard again.I replaced fuel


replace the fuel pump,the check valve that holds pressure on the fuel is in the fuel pump.The fuel in the lines is draining back into the tank

Dec 10, 2017 | 1994 Jeep Wrangler

1 Answer

Hard start and occasional stalling


souds like the choke is staying on too long , did you check the chokevacuum pull off they often go bad

Nov 14, 2009 | 1986 Chevrolet Camaro

1 Answer

Hard to start cold but once running is ok


I believe you have a throtle body correct? IF so you have poor fuel pressure, plugged filter of injector.If by some miracle you have a carberated engine the the fuel is leaking from the bowl. Get a carb rebuild kit.

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1 Answer

Engine cut out after running o.k for 1/2hour hard to start


I would start with the Fuel Pump Relay. Check the Fuel Pump, Fuel Filter and Belt Tension.

Jan 25, 2009 | 1999 Daewoo Lanos

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