Question about 1993 Volvo 940

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Car is Difficult to Start and Fuel Burns Fast - Possible Carborator or Fuel Line Issue

This car was not driven frequently- Had to have the battery recharged. Encountered difficulty startting engine. Car idles rough and cuts off. I replaced the following items hoping to resolve the problem:

1. Intakae Gasket
2. Spark Plugs
Spark Plug Wires
3. Dist. Cap
4. Roter
The care will start now but it cuts off, as if it is not getting gas.

Should the computer be reset?

I am not a mechanic but the person working on this care does not know what is causing it to continue to cut off with a rough iteling.

Please help.

Thak you

K. J.

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  • russellqueri Dec 08, 2008

    Ihave simuler proublem .i changed my fuelpump & filter still startes and dies

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The answer is here http://www.brickboard.com/FAQ/700-900/ and just about any other 940 question.

Posted on Dec 09, 2008

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1 Answer

Why 4dr5 engine is hard start


hi Josel.
Everything from the electrical system to the fuel system to the actual starter itself can be the problem. Finding the root cause of a hard starting engine can take some investigation. Ignoring a hard starting issue can further damage the vehicle, which will often result in a more expensive repair.

Car is hard to start Inspection Service A car that is hard to start can be a major inconvenience. While this is usually not a life threatening malfunction, it can make getting around much more difficult. There are a number of issues that will make a car hard to start. Everything from the electrical system to the fuel system to the actual starter itself can be the problem.
Finding the root cause of a hard starting engine can take some investigation. Ignoring a hard starting issue can further damage the vehicle, which will often result in a more expensive repair.
How this system works: In order to get an engine running, it must be turned at speed so that it starts to suck fuel and air into the cylinders, and then compress and ignite this fuel/air mixture.
The starter motor is an electric motor that turns the engine to get it started. The starter motor has a small pinion gear wheel that engages with a larger gear ring at the rim of the engine flywheel.
The starter motor draws the electric current it needs to run from the battery. The starter needs a heavy current and to avoid sparking a solenoid is used. The ignition switch operates the starter motor. When the ignition is turned on, current is fed to the solenoid and into the starter motor. Once the car engine starts and the key is released, the starter motor turns off.
Common reasons for this to happen:
  • Bad Starter: Over time starter motors can wear out and start to malfunction. If this is the problem the starter will have to be replaced. If the car turns over, the problem is not the starter. If nothing happens when the key is turned the problem could be the starter, or if the car turns over very slowly and the dash lights dim while it is cranking, the starter could be the culprit.
  • Bad Relay Wiring: The wiring between the battery and starter can become loose or broken which will prevent the starter motor from functioning. The wiring will need to be replaced or repaired.
  • Low or Dead Battery: The starter motor needs voltage from the battery to operate. If the battery is low or failing it may not produce enough current for the starter motor to function. Charging or replacing the batter should resolve this problem.
It is also possible that the battery terminals have become corroded or loose. Cleaning and tightening the terminals and cables is recommended.
  • Failing Solenoid: A failing solenoid is a common issue with the starter system and if the solenoid is going bad, the car will be difficult to start. The starter will need to be inspected to determine if the problem is the starter motor itself or the solenoid. A failing solenoid will need to be replaced.
  • Failing Ignition Switch: Over time an ignition switch can start to fail and one of the most common symptoms is that the car is hard to start. If the ignition switch is hot to the touch this indicates an issue with the ignition switch wiring. A failing ignition switch will eventually stop working completely and will need to be replaced.
  • Defective Fuel Pump: If the engine is not getting enough fuel, it will be hard, if not impossible to start. The fuel pump is responsible for pulling gas from the tank to the injectors and if it is not delivering enough fuel the car will be difficult to start and eventually will not start at all.
  • Fouled Plugs: Spark plugs create the spark which allows the vehicle to burn fuel. Fouled plugs are one of the most common reasons for a hard starting engine. As electrodes wear down, the voltage required to jump the gap to ignite the fuel increases. This can lead to prolonged cranking before the engine will start.
  • Clogged Fuel Filter: A fuel filter that is clogged can make a vehicle very difficult to start. The fuel filter screens out contaminants and can become clogged over time. This will prevent the injectors from getting enough fuel, making the car hard to start.
  • Contaminated Fuel: Fuel that has too much alcohol or water in it will result in a car that is difficult and often impossible to start. Even if it does start, contaminated fuel can do serious damage to the engine. If contaminated fuel is suspected, have the vehicle inspected immediately.
What to expect: A top-rated mobile mechanic will come to your home or office to determine the source and cause of the hard to start issue, and will then provide a detailed inspection report that includes the scope and cost of the necessary repairs.
How it's done: The starter, battery, connecting wiring and other important components will be inspected by the mechanic. This may include the vehicle's fuel pump, fuel filter, spark plugs, ignition and more. It may be necessary for the mechanic to crank up the car to verify the problem and issue an accurate diagnosis.
How important is this service? If a car is hard to start, it's indicative of a major condition preventing normal operation and if left unattended it may lead to the car not starting at all. The vehicle should be inspected and repaired as soon as possible.

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1 Answer

Fuel or Carborator issues


If your timing is off,it will effect the fuel getting to carb.Your plugs may be fouled.

Aug 29, 2012 | Chevrolet Chevy Cars & Trucks

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Car burns gas to fast and keeps shutting off


does the car
smoke ? sounds like you have a fuel regulator problem,
its located at the end of the fuel rail.
has a vacuum line connected to it
remove vacuum line you may see traces of gas being sucked in
to the line.
replace fuel regulator that should solve your problem

Jul 19, 2012 | 1994 Toyota Camry

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2004 325xi BMW wont start - replace spark plugs and fuel pump


If u hear the engine cranking in the AM, the batt & alt sound good. If you don't get any engine cranking in the am you may have an electrical short draining the battery. Before u convict the starter u must make sure the battery has full power in the AM. (12V) & 12 V to the starter

Apr 10, 2017 | 2004 BMW 3 Series

1 Answer

Car will not start turns over fast.


Car no start problem is sometimes very difficult to confirm. You try all the possible things, but still you get no fault and problem is still the same.--------
In that case, you need to check few things individually.
Check the spark,the battery,the crank, the fuel and other most possible parts. Click this link below for more details:-- http://howtobyme.blogspot.com/2011/10/car-troubleshooting-tips.html

Oct 31, 2011 | 2004 Mazda RX-8

1 Answer

Starter issue car wont start


Car no start problem is sometimes very difficult to confirm. You try all the possible things, but still you get no fault and problem is still the same.--------
In that case, you need to check few things individually.
Check the spark,the battery,the crank, the fuel and other most possible parts. Click this link below for more details:-- http://howtobyme.blogspot.com/2011/10/car-troubleshooting-tips.html

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2 Answers

New battery, new alternator, still wont start


    • 1 Ensure that your battery cables are properly connected to the battery.
    • 2 Start your car.
    • 3 Let the car run for around half an hour. Most cars idle fast enough that the alternator will be able to charge a battery while sitting at idle.
    • 4 Turn off your engine and test your electrical systems. If they work properly, your battery has been charged. If they do not work, or are sporadic, turn your car back on and drive around for another half hour. After the drive, your car's battery should be sufficiently charged.

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1 Answer

2001 Firebird does not usually start after being driven.


Sounds like fuel and/or fuel pump related issue. In warmer climates you get "vapor lock" after running AC, etc... You'll get same symptoms for a weak fuel pump and or possible corroded connections at fuel pump. Connections when cold are tight and make good contact. After you've driven it and they warm up they expand and loose some of their contact surface. Look over all the grounds on you car, little wires attached to firewall, fenderwells and check connections (electrical) on your fuel pump.

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My 92 saturn sl burns through gas way too fast. I barely make it 30 miles without having to fill up again. What do i need to do to get better gas mileage?


Need some more info. How much gas are you putting in it? Does it smell like raw gas at anytime? Under the hood or under the car? Possible broken (rusted) fuel line. Any service engine lights on? Does the car seem to run well?

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1994 corolla: hard to start


If it is happening more frequently in cold or damp weather it could be a spark issue. Wet or damp weather can effect spark plug wires if there is even minor damage to them (usually occurs durring rain). The other things that come to mind are the fuel pump and lastly the fuel line check ball that is in the fuel tank. If it is leaking then all the fuel in the line will drain back into the tank over night (pressure lost in the fuel line) and this will cause repeated, extended cranking when you first start the car in the morning or after the car has sat for several hours.

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