Question about 1978 Chevrolet C1500

2 Answers

1981 chevy 4x4 engine knock

I replaced the stock carb with an edelbrock 1406. now the engine knocks and runs rough.

Posted by on

  • 1 more comment 
  • livinlarge May 28, 2008

    i've been running the middle grade of gasoline 89 octane. i've checked the timing and no change. adjusted the carb no change. i have also removed all of the emissions.

  • livinlarge May 28, 2008

    also the edelbrock carb is a 4 barrell. the knocking sound is like i threw a rod bearing. but it didn't knock when i started the project.

  • Ron Brown May 11, 2010

    is your edelbrock carb 2 or 4 barrel?

×

2 Answers

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 16 Answers

That and you could have messed up your linkage on the carb leading to the tranny

Posted on Mar 12, 2015

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

If it is a 4 barrel you need to run a higher octane than a 2 barrel. You need to check your timing and readjust your mixture and air flow.

Posted on May 27, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Hi I just want to how much easier is it to tune an edelbrock carb then a quadrajet carb


Edelbrock cars are square bore and Quadrajets are spreadbore make sure you have either an adaptor plate if running stock manifold or you'll have vacuum leaks, as far as tuning Edelbrocks are EZ. 2 air/fuels screws that only effect idle, turn in till runs rough then back out 1/4 to 1/2 turn on both, that will set it for economy, for performance engines, turn out or counter clockwise till runs rough then turn back in clockwise 1/2 to full turn, set idle ***** and your good to go, the two vacuum ports in front are distributor advance, the right side closest to manifold is full time vacuum hook there for performance or left side for economy.. if you buy a new edelbrock carb it will run great right out of the box, also has a set/up DVD, for novice Mechanics, ez to change metering rods too, hope this helps, and in my opinion Quadrapuke carbs are junk.
26158435-1ng1ie4xxcdrqgg13cdx01r4-3-0.jpg

Apr 09, 2016 | Cars & Trucks

1 Answer

I have 2001 Chevy prism that was driven very low oil. Filled with oil but engine knocks and runs rough can I replace rods or new engine


I suspect that a replacement engine would be the cheapest way to go as to rebuild an engine is costly

Jan 17, 2013 | Cars & Trucks

2 Answers

Edelbrock 1406 3 years old on a Chevy 350 corvette. Starts and runs great when cold but when it heats up to running temp. and I shut off the engine it will not start!! Has great spark,compression,and fuel....


Check the choke and make sure that the choke is all the way open when hot. The choke should only be closed when cold. The choke can be adjusted on the side by loosening the 3 screws and wathcing the butterfly valve.

May 24, 2010 | 1972 Chevrolet Corvette

1 Answer

I am going from a qudrajet carb to an Edelbrock 600 with manual choke. I am not sure how the linkage switches over. I am working on a 1985 chevy 4x4 with a sb 350


If your staying with the stock intake manifold the edelbrock wont fit unless you install a adapter plate.And i would advise you not to install it will not seal properly.I would install a edelbrock intake manifold and carburetor as a matched set.You can purchase a edelbrock carburetor and intake manifold from advance auto parts that's designed for your vehicle.

Jan 30, 2010 | 1985 Chevrolet K1500

1 Answer

Mine has 217,000 miles. Has run great up until some time ago, when it started driving roughly only in wet weather. Now in dry weather, it starts fine, but drives roughly after warmed up (15-20 min) and...


The knock sensor NEVER causes a drivability problem. DO NOT change it. Instead, clean the MAF, Mass Air Flow sesnor that's on the air intake tube near air cleaner. It is coated with varnish. Spray with carb cleaner several times and gently, gently brush the wires. Theya re glass coated. Be careful.

Then disconnect battery for 2 hours and then reconnect and drive for 0 miles for computer to relearn engine contrils.

Also go here for more help
http://groups.yahoo.com/group/villagerquest/

Dec 27, 2009 | 2000 Mercury Villager

1 Answer

Knock sensor on 2001 chevy silverado


on the 4.3l version the knock sensor is on the back left side of the engine right by the bell housing. on the bigger engines they are below the intake manifold in the engine valley

Aug 26, 2009 | 2001 Chevrolet Silverado 1500

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

Related Topics:

229 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

60960 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

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

Answer questions

Manuals & User Guides

Loading...