Question about Chevrolet Silverado 1500

1 Answer

95 Silverado backfires thruogh throttlebody

1995 Chevy Silverado 166,000 miles 5.7 two wheel drive backfires through throttlebody when under a load or getting upto highway speeds.  Especially after short periods in slower traffic.  I have replaced cap, rotor, plug wires, plugs, fuel filter, and coolant temp sensor. I was told it could be a part in the distributer slipping and causing the timing to be way off.

Posted by on

  • dnutt320 Mar 08, 2009

    Thanks Dave,  I'll see if I can get a scan tool or tell my mechanic to try it.  The problem is sporatic and has happened more recently since the weather has warmed up.  

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,050 Answers

It sounds very likely that it is going lean. Could be a bad Mass airflow sensor or a fuel pump, maybe plugged injectors. The first thing to do if you can get your hands on one, is to put a scan tool on it that reads live data and go up a long steady hill while you are watching the O2 sensor voltage. It should toggle back and forth across .5V, if it remains below .5V while you drive, then you know it's not getting enough fuel. If so, check the fuel pressure to spec. If it is good, then the pump is fine and you're chasing the other two.

Posted on Mar 08, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

Why does intake catch on fire in my 1995 chevy silverado 350 5.3


backfiring can be from incorrect firing order--- wires crossed , ignition timing incorrect
or inlet valves remaining open--- hydraulic lifters , incorrect valve timing
check any work you have done that may have caused the problem

Nov 14, 2016 | Chevrolet Silverado Cars & Trucks

1 Answer

Cant locate my fuel injector in my 95 chevy blazer


Your '95 blazer does not have fuel injectors as such. Fuel delivery is accomplished by way of a " throttlebody" injection system. This unit is mistaken for a carbuerator but is systematically controlled through several electrical connections by the on board computer.

Apr 10, 2011 | 1995 Chevrolet Blazer

1 Answer

I have a 95 caravan 3.3 which Didn't start when I got it. All it does is backfire in the intake and when it runs it is olny on a couple of cylinders. I replaced the feul pump and coil and it had the same...


Have you replaced the fuel filter (located along the fuel line from the tank, just ahead of the rear wheels)? Also, have you made sure that the fuel pump is properly grounded? Does the fuel gauge work? If you have a loose or bad ground on the tank, neither your fuel gauge nor your fuel pump will work properly.

Feb 18, 2011 | 1995 Dodge Caravan

2 Answers

2004 chevy silverado 1500 4 wheel drive wont work..


try selecting from nutreul or less then 3km

Feb 02, 2010 | 2003 GMC Sierra

1 Answer

Drive a 95 Chevy Lumina 75 miles and odometer


cause the little plastic wheel the drives the odmeter is slipping on the shaft in the speedo head

Jan 20, 2010 | 1995 Chevrolet Lumina

1 Answer

Engine Performance problem 1997 Chevy S-10 4


According to my book, the first code is the brake control rough road sensor, and P0302 is a cyllinder #2 misfire. Check the gap on your plug, and make sure the plug wire is on all the way. Give the boot an extra good push. Backfiring or misfiring under load is always caused by poor ignition. You may also have a faulty plug or wire.

Oct 21, 2009 | 1997 Chevrolet S-10 Pickup

1 Answer

Just bought 95 chevy pu 5 speed manual looks like


Please ensure that this has gear oil because some of these actually ran regular dexron tranny fluid. If it is gear oil a standard 80w-90 is a good all grade gear oil to run in it.

Sep 20, 2009 | 1995 Chevrolet K1500

2 Answers

My 95 chevy blazer fuel preoblem i think


Check the Fuel pump with a presure guage.

Apr 21, 2009 | 1995 Chevrolet Blazer

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

553 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

70374 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22041 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6878 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...