Question about 1990 Volvo 740

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Motor bogs down at stoplight when pushin gas pedal

When at stoplight I push gas pedal to go and motor acts like it's getting to much fuel and bogs down allmost stalls, when I let up on gas pedal and give it just a little gas it slowly increase rpm and suddenly is ok and can take full gas pedal.

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Sounds like a typical throttle position sensor problem, ye before you get there check the air filter and make sure that youf fuel is not contaminated it is either your TPS or the air flow meter is going bad both are expensive sorry

Posted on Nov 14, 2008

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My 2004 Kia Optima keeps acting like it's not getting enough fuel in it it'll accelerate and then it'll bog until it almost dies then I have to pump the gas like crazy and so on bahhhh buuhh upn down


run the fault code to find the fault is less frustrating than pumping a pedal that does nothing other than to indicate a pedal position sensor problem or throttle motor problem

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How to replace the brake light switch on a 1997 grand marquis


Hello,

REMOVAL

  1. Disconnect the wire harness at the connector from the stoplight switch.
NOTE: Locking tab on connector must be lifted before connector can be removed.
  1. Remove the hairpin retainer and slide the stoplight switch, the push rod and the nylon washers and bushing away from the brake pedal. Remove the stoplight switch by sliding the stoplight switch up/down as required to remove.
NOTE: Since the stoplight switch side plate nearest the brake pedal is slotted, it is not necessary to remove the brake master cylinder push rod and one spacer washer from the brake pedal pin.

INSTALLATION
  1. Position stoplight switch so that the U-shaped side is nearest the brake pedal and directly over or under the pin. Then slide stoplight switch down or up trapping the master cylinder push rod and black bushing between the stoplight switch side plates. Push stoplight switch and push rod assembly firmly toward brake pedal arm. Assemble outside white plastic washer to pin and install hairpin retainer to trap whole assembly.
CAUTION: Do not substitute other types of pin retainers. Replace only with a production hairpin retainer. Component damage may occur.
  1. Assemble the wire harness connector to the stoplight switch.
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Dec 18, 2015 | 1997 Mercury Grand Marquis

1 Answer

Will start and Idle great but when push the gas pedal it just acts and sounds like its bogging down. I have replaced the fuel filter its a 1.5 4cyl automatic


You replaced your fuel filter but have you checked the fuel pressure. It sounds like the fuel pump is not putting out enough pressure to get enough gas to the engine.

Jun 09, 2014 | 1995 Mitsubishi Mirage

1 Answer

Should i go test fuel pressure 1st?


yep, check filter first, then pump

May 06, 2014 | 2002 Chevrolet Tahoe

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1984 toyota pickup wont start


I would suspect the fuel pump inside the gas tank is defective. Next time it fails to short hook up a fuel pressure gauge to the engine test port in the fuel supply pipe to the fuel injectors. You can buy the tester for about $25.00 on line.

Jun 13, 2012 | Cars & Trucks

1 Answer

When i push the gas pedal the bogs down almost as if i am out of gas


Could be several things wrong. One your fuel pressure may be low which means it could be a bad fuel pump. Have you changed the fuel filter lately? Also could be throttle position sensor. Does it recover after it bogs down? have you changed plugs or wires?

Jul 29, 2009 | 1998 Oldsmobile Bravada

1 Answer

Motor bogs down at stoplight when pushin gas pedal


The fuel pump relay will cause a stalling or no start condition. You are likely having mass airflow sensor, fuel pump, or fuel pressure regulator issues.

Bret
RepairPal.com

Nov 08, 2008 | 1985 Volvo 740

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