Question about 2009 Chevrolet Traverse LT2
Runs ok when warm,starts ok when warm,acts like its flooded and hard to start when cold
Posted by Anonymous on
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Posted on Jan 02, 2017
Could you give more detail as to what it's doing exactly? Is it having a hard time cranking the engine or does the engine crank but not want to get started?
Posted on Aug 01, 2008
Hello, yes the check valve is in the fuel pump assembly. The check valve is leaking and the pump will burn out soon. Unfortunately the aftermarket fuel pumps can be very unreliable. A good portion of problems we see on this site are from people who replace the pump sometimes twice and it still doesn't work.
Posted on Jan 03, 2009
The cylinder 7 misfire is likely a symptom of the problem, not the problem itself.
Typically, the catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate. The downstream 02 sensor reading should be fairly steady. Typically the P0420 code triggers the check engine light if the readings of the two sensors are similar. This is indicative of (among other things - such as faulty sensors in the "emissions loop") a converter that is not working as efficiently as it should be.
I do not believe that it is a problem with a valve/head gasket or cam.
Posted on Jan 13, 2009
replace your MAP sensor(manifold absolute pressure) the map sensor is the computer for your fuel pressure regulator telling how much pressure. Unless your tahoe runs like **** going up hill than it inevitably your fuel pump
Posted on Feb 17, 2009
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