95 Silverado Starting problems

lindsayo · 09-29-2008, 09:17 AM

So I bought this Silverado from some dude....and yes, it had some problems. I put in a brand new starter, battery, alternator, rebuilt the fuel injector throttle body with all new gaskets, new fuel filter, and new fuel pump. The only time I took it in to a shop was for the fuel pump. Now, I have no idea who this guy was, but when he put in the new pump, the gas guage doesn't work anymore. I had this all done in Minneapolis MN, so I can't go back to him and get it fixed. But now the truck won't start. It sounds really healthy when it cranks to start, but doesn't seem to be getting that spark. I thought maybe I got some bad gas, so I put a can of Seafoam in it to try and stabalize the fuel. That didn't work either. So it takes me back to the fuel pump. Any tips or other ideas would greatly be appreciated.

gmctrucks · 09-29-2008, 10:03 AM

Can you hear the fuel pump turning on? If not check the fuse to start with also I have heard that after market fuel pumps shell out soon even when brand new and placing on truck next time go with a Delco brand pump. I think there is two places where the fuel pump fuses are wait for someone else to chime in and tell you like 75K30 or other smart members as well. I'm also thinking that it might be a bad connection on pump.

bradrhale · 09-29-2008, 11:24 AM

sounds like he shorted a connection out when he put everything back in the tank. that would cause your gas gauge to be off since it is not getting any signal from the sending unit. turn the key to the on position and listen for the pump to run. it should run for a couple of seconds and cut off. if it aint, check a fuse like gmc said and if it looks good, look and test the connections coming out of the tank.

FaselZ71 · 10-05-2008, 02:42 PM

Well you may have answered your own question. Judging by what you've said you did good with the fuel system by replacing and rebuilding everyhing but you said seems like it aint getting that spark. Well have you looked into plugs, wires, dist. cap, rotor. I think your truck has High Energy Ignition (HEI) so grabbing the plugs to see if they are getting juice is a bad idea trust me. Take one of the plugs out lay it on the block have a buddy crank it over see if you have spark and make sure it's a strong blue spark because a wimpy little yellow spark just won't cut it for firing over a big motor. Another thing if it is you pump why can't you get the guy to fix it. If your gonna have ashop do it make sure it's a good certified local shop. Good luck man!

leolkfrm · 10-06-2008, 07:07 PM

try spraying some fuel don the throttle body, if its fuel it will kick. if it kicks, scan it check the reading on the temp switch. the comp will shut down the pump if it doesn't like the reading from the switch.....just a thought

09-29-2008, 09:17 AM	#1
lindsayo Junior Member Join Date: Sep 2008 Location: Austin, TX Posts: 1	95 Silverado Starting problems So I bought this Silverado from some dude....and yes, it had some problems. I put in a brand new starter, battery, alternator, rebuilt the fuel injector throttle body with all new gaskets, new fuel filter, and new fuel pump. The only time I took it in to a shop was for the fuel pump. Now, I have no idea who this guy was, but when he put in the new pump, the gas guage doesn't work anymore. I had this all done in Minneapolis MN, so I can't go back to him and get it fixed. But now the truck won't start. It sounds really healthy when it cranks to start, but doesn't seem to be getting that spark. I thought maybe I got some bad gas, so I put a can of Seafoam in it to try and stabalize the fuel. That didn't work either. So it takes me back to the fuel pump. Any tips or other ideas would greatly be appreciated.

10-06-2008, 07:07 PM	#5
leolkfrm Senior Member Join Date: Mar 2008 Location: N.Y. Posts: 4,300	try spraying some fuel don the throttle body, if its fuel it will kick. if it kicks, scan it check the reading on the temp switch. the comp will shut down the pump if it doesn't like the reading from the switch.....just a thought __________________ 4 wheels move the body 2 wheels move the soul B.W.A.I

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
2007 1500 hemi starting problems	carlskl	Dodge Truck Forum	2	06-02-2008 12:09 PM
85 silverado/starting problems	pahokeejoe	Chevy Truck Forum	5	05-14-2008 04:55 AM
Starting problems	BSHeiz	GMC Truck Forum	9	12-22-2007 03:16 PM
starting problems	tjh1075	Dodge Truck Forum	0	02-21-2007 03:33 PM
Starting problems (New Bee)	Chipper	GMC Truck Forum	1	11-12-2006 09:18 PM

09-29-2008, 10:03 AM	#2
gmctrucks Senior Member Join Date: Nov 2006 Location: Houston,Texas Posts: 4,035	Can you hear the fuel pump turning on? If not check the fuse to start with also I have heard that after market fuel pumps shell out soon even when brand new and placing on truck next time go with a Delco brand pump. I think there is two places where the fuel pump fuses are wait for someone else to chime in and tell you like 75K30 or other smart members as well. I'm also thinking that it might be a bad connection on pump.

09-29-2008, 11:24 AM	#3
bradrhale Senior Moderator Join Date: Apr 2006 Location: Texas Posts: 8,027	sounds like he shorted a connection out when he put everything back in the tank. that would cause your gas gauge to be off since it is not getting any signal from the sending unit. turn the key to the on position and listen for the pump to run. it should run for a couple of seconds and cut off. if it aint, check a fuse like gmc said and if it looks good, look and test the connections coming out of the tank.

10-05-2008, 02:42 PM	#4
FaselZ71 Senior Member Join Date: Oct 2008 Location: Northern Michigan Posts: 1,177	Well you may have answered your own question. Judging by what you've said you did good with the fuel system by replacing and rebuilding everyhing but you said seems like it aint getting that spark. Well have you looked into plugs, wires, dist. cap, rotor. I think your truck has High Energy Ignition (HEI) so grabbing the plugs to see if they are getting juice is a bad idea trust me. Take one of the plugs out lay it on the block have a buddy crank it over see if you have spark and make sure it's a strong blue spark because a wimpy little yellow spark just won't cut it for firing over a big motor. Another thing if it is you pump why can't you get the guy to fix it. If your gonna have ashop do it make sure it's a good certified local shop. Good luck man!