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PostPosted: Tue Jul 14, 2015 7:16 pm 
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Joined: Tue Jul 14, 2015 6:37 pm
Posts: 3
Location: United States
1999 Suzuki swift 1.3. Has lost power.Will not go up hills.barely starts and idles.Will not rev up.
I checked the compression 95 100 125 115. Motor has 240k. I use it for computing to work.
My question is.... is it the fuel filter? That's my next step. Is the fuel filter inside the tank,sock kind?
Is seems to be starving for fuel.. any suggestions?? I'm new to this site.
Please help.. John


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PostPosted: Tue Jul 14, 2015 8:36 pm 
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Joined: Tue Jul 14, 2015 6:37 pm
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Location: United States
Any ideas would be appreciated. Just need my car running again....


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PostPosted: Tue Jul 14, 2015 9:22 pm 
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Joined: Mon Dec 01, 2003 12:47 pm
Posts: 11675
Location: columbus, ohio
the first thing you need to do is to use an obd!! scan tool to read the fault codes. car part stores like auto zone will read the fault codes for you for free. there are a number of engine sensors that can give you issues.

my gut tells me it's your fuel pump. that is inside the fuel tank and you need to drop the tank to change it. the mk5 cars didn't have an external fuel filter and the filter on those cars is attached to the fuel pump, more like the "sock" type filter that keeps the big chunks out of the pump.

the compression numbers are really poor which would weaken the engine's output. the compression numbers would indicate either ring or valve issues. take compression readings with the engine at operating temp, the fuel injection fuse pulled, all plugs out, and the throttle body's throttle plate fully open (floor the pedal.)

after the dry compression test, drop a teaspoon of engine oil through each spark plug hole, screw in the gauge, and crank the engine over with the pedal to the floor. if your readings show an increase in compression from the dry test readings it means that the oil helped the rings seal and you need to pull the pistons and take bore measurements. if the bores are tapered or ovalled, you need to bore the cylinders and replace rings. if the compression readings don't increase with the oil added, you need a valve job.

because your stated compression readings are low and not within 10% on each cylinder, an engine overhaul is indicated.

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PostPosted: Thu Jul 16, 2015 10:38 pm 
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Joined: Tue Jul 14, 2015 6:37 pm
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Location: United States
Thank you!!.


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