95 Chevy starts but won't stay running. 305ci. Fuel pressure about 8lbs when running, cheap gage, has good gas, no gas/water in oil, no oil in water, no backfire. Starts good at 30 f runs about 5 min then hunts, when it gets to the bottom of the hunt it has a loud sucking from the TBI. It does for three time then dies.
If you pump gas it revs, if you rev and hold it revs with a slight bog but if you rev higher during the bog it will rev higher. The ypipe flange just wore though so I have not been able to detect a vacuum leak. If you have any questions I will try to post anything to help.
2007-01-29 07:19:24 · 8 answers · asked by Tim D 4 in Cars & Transportation ➔ Maintenance & Repairs
have good gas, no fuel filter that is where the gage hooks up, all regular maintence is done wires, plugs filters and such. As far as the fuel reg I don't know how to check it.
2007-01-29 07:35:25 · update #1
cheap guage cost $12.00 but I do know it has pressure.
2007-01-29 07:39:08 · update #2
Have an OMC computer the only code I have is for the O2 sensor which at this time is disconnected so I have no codes at this time.
2007-01-29 07:51:46 · update #3
Have an OMC computer the only code I have is for the O2 sensor which at this time is disconnected so I have no codes at this time. code 44
2007-01-29 07:53:49 · update #4
Several possibilities here.
Best to start here↴
http://autorepair.about.com/library/ts/obd-i/bl-dtcs-68a.htm
…and scroll down below the chart, and study the procedure for retrieving diagnostic trouble codes. It is simple and requires only a paperclip.
Identify the code descriptions and perform diagnostics related to the system or circuit indicated. If you are unfamiliar with the proper diagnostic procedures, refer to a quality repair manual or the shop manual (available at most local libraries)
Happy Motoring
2007-01-29 07:46:33 · answer #1 · answered by Ironhand 6 · 0⤊ 0⤋
8 psi from fuel pump is verify low should be 45 to 60. also if you have a problem with the y-pipe flange check for blockage in exhaust which could cause to much back pressure.
2007-01-29 07:40:43 · answer #2 · answered by Sundew 4 · 0⤊ 0⤋
Sounds like my old '97 Sierra. I'll bet the fuel pump has degraded and isn't putting out enough pressure. I always thought either they worked or they didn't but found out they will degrade, giving you the indications you mentioned.
2007-01-29 12:07:59 · answer #3 · answered by BULLITT 2 · 0⤊ 0⤋
You didn't mention if you changed the fuel filter! Did you? A clogged filter will prevent fuel from getting to the carbuerator or injectors.
2016-03-29 08:23:05 · answer #4 · answered by Leigh 4 · 0⤊ 0⤋
Fuel pressure spec is 9 to 13 p.s.i., so you are running pretty low.
2007-01-29 07:35:23 · answer #5 · answered by jarhed 5 · 0⤊ 0⤋
8 P.S.I. sounds a bit on the low side, when is the last time you replaced the fuel filter?
2007-01-29 07:30:28 · answer #6 · answered by Anonymous · 0⤊ 0⤋
what about the air filter?it could be so dirty that it cant breath.also check the fuel regulator.it could be bad of not getting vaccum.
2007-01-29 07:28:19 · answer #7 · answered by Anonymous · 0⤊ 0⤋
maybe you need better gas
2007-01-29 07:26:46 · answer #8 · answered by shorty 6 · 0⤊ 0⤋