Fuel pump questions '94 Chev pickup


	Auto Repair Home	SEARCH POSTS	WHO'S ONLINE	LOG IN

Automotive Repair

Car Troubleshooting Topics
  Car Troubleshooting
  Engine Troubleshooting
  Engine Fault Codes
  Electrical and Wiring
  Transmission Problems

Car Repair Topics
  Car Making Noises
  Car Stereo Repair
  Heating or AC Issues
  Motorcycles and ATVs
  Tricks of the Trade
  Truck Repair Advice

Site Options:
  Login
  Sign up here!

Latest Forum Post

1989 toyota pickup 3.0 crank no start

I have a 1989 toyota pickup 3.0 crank no...

Strut spring orientation and strut mount tension nut

2017 Nissan rogue awd 2.5 L Put in Monro...

Transmission stuck in part, I have tried everything

So I'm working on my elderly fathers 201...

2017 dodge journey LED headlights on/off randomly

Year of vehicle 2017 Make of vehicle dod...

Kia Soul starter replacement issues!

Okay so my car is a 2010 Kia soul 2.0 en...

Please Help - Knock sound & engine fail

Hi all, Hoping to get some insight and ...

multiple warning lights

2013 GMC Terrain 130,000 miles 4 cylinde...

03 alero no low speed blower

Good day everyone, I have a 2003 Olds a...

04 Chevy 2500hd tail light issues

Help!!! I have changed my combo switch...

1999 Grand Caravan Sport not starting.

Hi. I'm new here. I hope someone can hel...

Fuel pump questions '94 Chev pickup

Sign up here!

Search for (search options)

Auto Repair Home>> Automotive Repair>> Car Troubleshooting

Guest
Anonymous Poster
tinknal@hotmail.com

Apr 1, 2007, 10:11 AM

Post #1 of 4 (1392 views)

Fuel pump questions '94 Chev pickup	Sign In

I have a '94 chevy pickup. Friday it was running rough, especially under a load. It was cruising ok on flat road but as soon as I hit any kind of incline I didn't have enough power. The next day the truck would not start. I'm thinking fuel pump. My question is could a relay fail like this, or do they go to heck all at once? Is there another relay on the truck that I could swap out just to test it?

Guest
Anonymous Poster

Apr 1, 2007, 11:04 AM

Post #2 of 4 (1390 views)

Re: Fuel pump questions '94 Chev pickup	Sign In

OK, update. The relay clicks on when I turn on the ignition, the pump runs and turns off like it should, and I have good spark. I'm starting to think fuel filter, does this sound reasonable? Where is the filter, is it in the throttle body where the fuel line gos in?

steve01832
Veteran
steve01832 profile image

Apr 2, 2007, 3:50 AM

Post #3 of 4 (1376 views)

Re: Fuel pump questions '94 Chev pickup	Sign In

The fuel filter is under the vehicle on the left side frame rail. It is a little ways in from the fuel tank. You should change the filter and make sure you have new 0-rings for the fuel lines. Then do a fuel pressure test. You can get a fuel pressure guage at AutoZone for about $25.

Steve

DanD
Veteran / Moderator
DanD profile image

Apr 2, 2007, 4:14 AM

Post #4 of 4 (1375 views)

Re: Fuel pump questions '94 Chev pickup	Sign In

To add too what Steve has said; just because you can hear the pump running it doesn’t guarantee that it’s producing the proper amount of pressure.
A 94 V6 or small block back then were still likely TBI (throttle body injection) and the pressure should be in the range of 9-13 psi.
Dan.

Canadian "EH"

Search for (options) Privacy Sitemap