truck wont start

drewmowles · 05-02-2007, 05:01 PM

i have a 1994 chevy silverado 4x4 5.7 that a few months ago started loosing power going up hills. then it started loosing power going down flat road. and now it wont start at all. i put a new distriburator on it and spark plugs and wires thinking that might be it but it still wouldnt start. i checked the fuel pump and its working fine. i have no idea what the problem is and would apperciate any ideas

Stoney · 05-02-2007, 06:34 PM

I'd check to see what shape the timing chain is in by removing the distributor cap and watching the rotor for movement while manually rotating the crank in both directions.

436'd skylark · 05-02-2007, 07:18 PM

MY guess would be the pump. Did you verify the pressure, or is it just running. Seen way to many guys assume the pump is good just because it still runs, only to waste hundreds on stuff they didn't need. Did you try spraying some carb cleaner/ether down the throttle body? did you check for spark? If good fuel pressure, and no spark or injector pulse you need a module, or a pick-up coil. I replace them both at once just to get it over with.

So verify your fuel pressure with a guage, check for spark and get back to us. from your description its definitly sounds like the pump though.

gmctrucks · 05-04-2007, 08:30 AM

Have your battery tested check the cables as well a bad battery can really fool someone just a thought.

drewmowles · 05-04-2007, 03:52 PM

ok i checked it all out and i think its going to be the fuel pump. now i just got to get a few friends to help me lift the bed off and change it.

drewmowles · 05-04-2007, 07:58 PM

ok i changed the fuel pump and the ignition module, distriburator cap and spark plugs and the truck still wont start any more ideas??

MrBones · 05-04-2007, 09:47 PM

You may want to check the wires going to the distributor module. Definately make sure you have spark. And even though you put a new distributor in does that mean it came with a new module too? Also I have gotten bad modules straight from the store before.

sandtiger · 05-05-2007, 01:47 AM

What exactly does it do when you try to start it? Does it turn over?

drewmowles · 05-06-2007, 10:56 PM

i checked the wired and its getting spark to all the sparkplugs but when i turn it over it acts like its going to start then just dies even when i spray starting fluid ino it it still wont fire

bradrhale · 05-07-2007, 07:54 AM

sounds like possible timing issue. grab a light a make sure that timing is still correct.

05-02-2007, 05:01 PM	#1
drewmowles Full Member Join Date: May 2007 Posts: 22	truck wont start i have a 1994 chevy silverado 4x4 5.7 that a few months ago started loosing power going up hills. then it started loosing power going down flat road. and now it wont start at all. i put a new distriburator on it and spark plugs and wires thinking that might be it but it still wouldnt start. i checked the fuel pump and its working fine. i have no idea what the problem is and would apperciate any ideas

05-02-2007, 06:34 PM	#2
Stoney Senior Member Join Date: Nov 2006 Location: SW PA Posts: 50	I'd check to see what shape the timing chain is in by removing the distributor cap and watching the rotor for movement while manually rotating the crank in both directions. __________________ Peter '03 Silverado 2500HD LS XC SB 8.1L/Allison 3.73LSD 4X4 3/3 drop

05-02-2007, 07:18 PM	#3
436'd skylark Senior Member Join Date: Mar 2007 Location: Buffalo Ny Posts: 627	MY guess would be the pump. Did you verify the pressure, or is it just running. Seen way to many guys assume the pump is good just because it still runs, only to waste hundreds on stuff they didn't need. Did you try spraying some carb cleaner/ether down the throttle body? did you check for spark? If good fuel pressure, and no spark or injector pulse you need a module, or a pick-up coil. I replace them both at once just to get it over with. So verify your fuel pressure with a guage, check for spark and get back to us. from your description its definitly sounds like the pump though. __________________ Joe 89 K2500 Chevy, Wee-Oh-five 285K miles, completly rebuilt needs a motor, bad 1962 IHC Scout All Wheel Drive (Scout speak for locking axles) 152 ci, dana everything else

05-04-2007, 09:47 PM	#7
MrBones Junior Member Join Date: May 2007 Location: San Diego Posts: 4	You may want to check the wires going to the distributor module. Definately make sure you have spark. And even though you put a new distributor in does that mean it came with a new module too? Also I have gotten bad modules straight from the store before. __________________ Abandon All Hope Ye Who Enter...

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

05-04-2007, 08:30 AM	#4
gmctrucks Senior Member Join Date: Nov 2006 Location: Houston,Texas Posts: 1,970	Have your battery tested check the cables as well a bad battery can really fool someone just a thought.

05-04-2007, 03:52 PM	#5
drewmowles Full Member Join Date: May 2007 Posts: 22	ok i checked it all out and i think its going to be the fuel pump. now i just got to get a few friends to help me lift the bed off and change it.

05-04-2007, 07:58 PM	#6
drewmowles Full Member Join Date: May 2007 Posts: 22	ok i changed the fuel pump and the ignition module, distriburator cap and spark plugs and the truck still wont start any more ideas??

05-05-2007, 01:47 AM	#8
sandtiger Full Member Join Date: Jul 2004 Posts: 24	What exactly does it do when you try to start it? Does it turn over?

05-06-2007, 10:56 PM	#9
drewmowles Full Member Join Date: May 2007 Posts: 22	i checked the wired and its getting spark to all the sparkplugs but when i turn it over it acts like its going to start then just dies even when i spray starting fluid ino it it still wont fire

05-07-2007, 07:54 AM	#10
bradrhale Moderator Join Date: Apr 2006 Location: Texas Posts: 3,609	sounds like possible timing issue. grab a light a make sure that timing is still correct.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Help a Student..Take a Truck Survey	ClassSurvey	General Truck Forum	2	12-08-2007 06:51 PM
1990 chevy truck hard to start	Bill Wiser	Chevy Truck Forum	2	12-30-2006 08:18 PM
Truck seems to start when it wants, not really.	Fishjager	Chevy Truck Forum	3	11-14-2006 07:49 PM
1989 chevy truck won't start	woodman13	Chevy Truck Forum	5	07-13-2006 06:01 AM
Please help... truck died now wont start	jarrod	Toyota Truck Forum	8	01-31-2005 09:49 PM