Te fuel pump seems to be pumping fuel and ichanged the filter and the mapp sensor.im going nuts trying to fix my truck. please help.
2007-01-21 09:39:27 · 8 answers · asked by just asking. 1 in Cars & Transportation ➔ Maintenance & Repairs
if a throttle body (TBI) fuel pressure is suppose to be 25 and then 0 if not running due to a non pressured return line/replace the 4 wire assembly(idle air control) on the lower part of the passenger side(square connector)behind the tps(throttle position sensor/could also cause it to do this problem/Under hood, center, upper engine area, center of intake manifold, mounted on passenger side of throttle body unit) on the throttle body. if not sure look it up in the parts locator at the library or ask the guy at the parts house to show you one.
http://www.autozone.com
2007-01-21 18:50:28 · answer #1 · answered by Mr D 3 · 0⤊ 0⤋
First, not knowing your engine size, the fuel pressure should be 55-60 lbs. If well below that, the truck won't start. If the fuel pressure is good, take the vacuum hose off the fuel pressure regulator, and if gas comes out, replace the regulator. Without knowing anything about your truck, that is all I can tell you.
2007-01-21 09:51:15 · answer #2 · answered by cms_38us2002 2 · 0⤊ 0⤋
Most of the time I have had this problem it has been the gas filter. You most likely have an inline gas filter somewhere between your gas tank and your carburetor. If you can find that then replace it. Yourself it may cost about $ 15.00. With a mechanic, figure about triple. Go from there.
Hope that this helps you out. Good luck. !
2007-01-21 10:20:27 · answer #3 · answered by having fun 3 · 0⤊ 0⤋
you've good gas stress for this style of gas device you should envision injector pulse first simplest executed with a noid mild this device typically runs about $15.00 at a parts keep for a equipment guard it and also you may under no circumstances ought to purchase yet another one it plugs into the injector wires and could flash as you crank if it flashes the injector needs to get replaced no matter if it isn't spraying gas interior the throttle body no matter if it isn't flashing good probability the pickup is undesirable interior the distributor and also you may want more suitable attempt at this element i'd convey it to a keep
2016-10-15 21:55:10 · answer #4 · answered by gettinger 4 · 0⤊ 0⤋
you probably have a bad fuel pressure regulator that is not keeping the gas in the fuel line and it is letting it go back to the tank...do this..when you go to start the truck...turn the key over in the on position and listen for the fuel pump to prime..then turn key back to off position..then turn to on again.. and let the pump prime the line.. then turn key over to where the starter engages...see if it will crank this way..if so the replace the regulator... and get back to me..
2007-01-21 11:02:54 · answer #5 · answered by gotspeed7883 3 · 0⤊ 0⤋
There could be holes in your gas lines. Or maybe it got pinched. Pump your gas and see if you either smell gas or see puddles under your car. Also check the seal above your gas tank, it could also be worn out.
2007-01-25 09:02:47 · answer #6 · answered by Christopher G 2 · 0⤊ 0⤋
take it to a mechanic
2007-01-21 09:42:06 · answer #7 · answered by looloo 2 · 1⤊ 0⤋
might be a clogged line?
2007-01-21 09:42:51 · answer #8 · answered by ? 7 · 0⤊ 0⤋