Help with 93 S-10 Fuel system - Car Troubleshooting


	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

2006 Toyoto Camry XLE Driver Side Electric Window Trouble

Hello, Looking for a little brain help ...

Tierod end change caused some kind of leak

Hello so I just took my car to the nearb...

2011 Dodge Nitro OBD scanner seems to drain battery in 10-20 minutes

When I bought this car in summer 2023, a...

Grounding Cable, 2017 Jeep Renegade Trailhawk

The Cable that connects my negative batt...

Rough Idle (Found new thing)

Hi everyone. First of all sorry for bad ...

equipment

hey yall. im a first year engineering st...

HELP

I have a 1956 1/2 ton panel truck, 69 35...

Howdy

    Just wanted to s...

ABS/Tractiob/Brake Lights on But No DTCs

Hello all, Recently while driving m...

Chevy strut replacement

I'm trying to get a sensor of some kind ...

Help with 93 S-10 Fuel system

Sign up here!

Email This Post

Auto Repair Home>> Automotive Repair>> Car Troubleshooting

Guest
Anonymous Poster

Nov 4, 2006, 2:37 PM

Post #1 of 4 (1387 views)

Help with 93 S-10 Fuel system	Sign In

I have a 1993 Chevy S-10. I can drive it for a few miles and it will run ok, but if I stop at a stop light it will cut off and not want to crank back up. I acts like it is not getting fuel. I have replaced the fuel filter and fuel pump. I have pressure to the throttle body when it is setting in the driveway idling. When it stops on the road I can pour some gas in the throttle body and it will crank up. I took off the fuel pressure regulator off it it didn't look like anything was cracked or worn. I am baffaled. Can some help Please?

steve01832
Veteran
steve01832 profile image

Nov 5, 2006, 4:35 AM

Post #2 of 4 (1380 views)

Re: Help with 93 S-10 Fuel system	Sign In

If you have a 4.3 liter engine and you have been using a lot of fuel since this started happening you more than likely need to replace the fuel injector. This has been a very common problem with these engines because of the design. You can put a fuel pressure guage on the port. turn key on but don't start the engine. You should have about 62 psi. Turn the key off. If the pressure guage drops down steadily, the poppet valves are hanging open. Replace injector.
Another tell tale sign is if you notice black smoke out of the tailpipe when driving, possibly accompanied by a sulfur smell.

Steve

Guest
Anonymous Poster

Nov 5, 2006, 6:33 AM

Post #3 of 4 (1377 views)

Re: Help with 93 S-10 Fuel system	Sign In

I have the 2.5 in mine, but the problem sounds like what may be happening. When it is idling in the driveway the injector is firing fine. Maybe it is loosing pressure when it gets heated up. Thanks for your help Steve

ucarifix2dy
User

Nov 21, 2006, 5:58 PM

Post #4 of 4 (1353 views)

Re: Help with 93 S-10 Fuel system	Sign In

it could be you not getting injector signal from the ECM do a injector pulse test with noid light if flashes when starting then ecm should be good if not flashing then it could be the ECM.

Email This Post

Search for (options) Privacy Sitemap