Question about Chevrolet Tahoe
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Posted on Jan 02, 2017
First, you need to check the MAF sensor for contamination.
Second, check fuel pressure, if you dont have a gauge, autozone and Advance have them on their tool loaner program.
Should see 35-40 psi with key on engine off, cycle key a few times, if it takes a while to build up, replace filter and retest.
Third, possible convertor blockage, easiest check is to remove the 02 sensor and try to start with the hole open, if it runs, then that is it, specs allow for 2-3 lbs of back pressure max. That means if you can hear pressure escaping, it is a problem area.
Posted on Sep 01, 2008
SOURCE: 93 honda accord fuel pump??
Check the distributor by letting the car run and tug on the wiring and see if the car acts up. Under the thermostat housing is a wiring harness, I've seen coolant drip on the connector of the O2 sensor and cause this problem too. The main relay is the switch you're referring to. It's located under the dash of the driver's side to the left. I've definitely seen these go bad. Use a test light on the hot wire to the fuel pump. Have an assistant turn the key in the "on" position and see if you have power there. Let me know what you found out so I can hopefully give you more things to check out. Send me emails to email@example.com.
Posted on Nov 01, 2008
SOURCE: '99 chevy caviler fires right
If it is fuel injected it will get enough fuel to start but not stay running. I had the same problem with my S10. Turns out the hose that went on to the end of the fuel pump was roted. pull the sending unit and check the hose connections to the pump and the sending unit. If problem presists replace filter first the pump.
Posted on Jan 26, 2009
SOURCE: 1996 chevy tahoe fuel system
check for voltage at the pump. If it has 12v there, (and a good ground) then pump is bad. there may be a pump fuse on the fuse block (can't remember) but if you find it has blown, the pump may be getting ready to fail. If fuse fixes the problem, replace it and carry an extra with you, then change the pump.
Posted on May 14, 2009
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