Question about 2002 Daewoo Lanos

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Fuel delivery problem

Hi all... I've been fighting my car now for 3 weeks. It would start after 10 - 20 trys. Run sluggish like it is starved for fuel. Took it into your pals at Napa. Diagnosis, only 14 lbs of fuel pressure at fuel rail. Need a new fuel pump. New pump installed, new filter, clear fuel line. Same problem, but now it won't even start.
Car - 1
Clayton -0

I'm about to bite the bullet and take it into a dealer, but they have all dried up here in Arizona. Nobody to even rake me over the coals.
Any suggestions...?

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  • strltt Oct 17, 2008

    Stormbrewin...Pressure should have been 40 - 45. (only14). Problem started 3 weeks ago. After the starting struggles I was able to drive it from A to B. It chugged a bit and was not alot of fun to drive in traffic, yikes. I swapped the fuel pump relay, no change. I will swap the fuel pump fuse in the a.m. just for giggles.

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Was the pressure relief valve checked?Try crimping without damaging the fuel return line ,Get somebody to try to start the vehicle while you do this, if it trys to start either the pump has failed again or the fuel is bypassing and being returned to the fuel tank.How long before replacement of pump and breakdown? Did they tell you what pressure it was supposed to be at.I have seen an ignition module give very similar symptoms.

Posted on Oct 17, 2008

  • tony yeatman
    tony yeatman Oct 17, 2008

    Its a lot easier to fix a problem with bum up and head in the engine bay than it is to do online but it is good to have a win knowing someone is better off for it .Considering that you have already replaced most of the important parts of the fuel system and your really no better offf you have to check that you have spark at the plugs .Do you know anyone that can remove a spark plug and check that you have an ignition good enough to ignite the fuel.should be a strong blueish color not yellow and weak.

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