Question about Chevrolet Cars & Trucks

1 Answer

I need to know why my 1985 blazer is idling so bad. i know the plugs are bad in it and that it has many miles on it. is my plugs the only thing i need to change? i have a new altenator. i have changed the oil, which hasn't been changed in 7 years. it has a brand new starter and brand new air and oil filter. and i am also about to put new valve cover gaskets on it. i dont know if any of these things could have helped it. and i wanted to know it the old oil could have hurt my motor.

Posted by on

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.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Chevrolet Master
  • 632 Answers

I good tune up may cure your issues but is not garanteed. with a vehicle this old I would change the ignition module(located in the distributor), ignition rotor, ignition cap, ignition wire and the spark plugs and oil change. Check the pick up coil in the distributor if corroded it may be easier just to get a new distributor. As I said no garantees but you stating the fact that it needs plugs this would be a good starting point to get a base line of how the engine is running

Posted on Oct 27, 2012

6 Suggested Answers

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

micromaster
  • 3614 Answers

SOURCE: 1995 accord LX engine shakes when starting

have you try cleaning also the air filters..? fuel pump..?

Posted on Jun 18, 2008

  • 61 Answers

SOURCE: how to replace a PCV valve on my 1997 dodge neon?

Once you have the new PCV valve locate the old one on your engine. It will sit on the middle of one of your valve covers (most likely passenger side) and will have a line that connects to the top of the valve. Simply pull the old one out and put the new one in snapping that line on the new one. Should only take about a minute to do. Hope this helps, let me know if it does.

Posted on May 05, 2009

  • 232 Answers

SOURCE: Rough Idle after winter in storage - 92 C4 convertible

Try a popular fuel stabilizer like Seafoam sold just about anywhere.

Posted on May 08, 2009

  • 171 Answers

SOURCE: 1985 ford F150 is running very rich. (choke is

When you say it's destroying the air filter---do you mean it's all sooted up ?? I am assuming that what you mean.
Try disconnecting the vacuum line at the egr valve and see if that helps.
But it sounds more like a plugged up exhaust system.Try disconnecting or looosing the flange before the cataylic convertor and then see how it runs.

Posted on Nov 20, 2009

  • 25 Answers

SOURCE: Oil leak from valve cover gaskets on 1999 Toyota

not much mate. pretty easy. Just get the original gaskets from the agent and also get a tube of engine silicon from repco or any auto shop. Its a bolt off and on situation. Make sure no dirt and grime falls into the cams when taking off the valve cover.

Posted on Feb 22, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Not a problem , just wanted to know what oil pressure should be on a 1999 chevy blazer after running for about 15 min.


it can very greatly depending on the engine, miles, tempture.... but a good rual of thumb is any thing over 15 psi at hot idle is ok and any thing over 30 but under 70 at cruse is ok

Apr 14, 2011 | 1999 Chevrolet Blazer

1 Answer

1985 Chevy: I have a 1985 2.8L chevy 4x4 Blazer I just re...


All GM have ignition coil problems , your getting too much fuel , I have seen O2 sensors and plugged catalytic mufflers too many times , be careful the next ride the vehicle will catch on fire..Try the coil first

Apr 14, 2017 | 1985 Chevrolet Chevy

3 Answers

I have a 1994 with vortec 4.3 that shakes sometimes


Shakes how? While stopping? Or solely while idle, Engine light on?

If if shakes while stopping you need to check you're wheel hubs and or Suspension ,

Shakes at a light, You may have a bad fuel Injector, Check you're psi in you're fuel pump, A TPS would cause low idle or sometimes high idle, With low idle and a bad motor mount it would shake,

I know theres a few things I'm missing but,.. I have a major Headache atm so I'll get back to you with some more, when i can think better. :)

Sep 08, 2009 | 1994 Chevrolet S-10 Blazer

1 Answer

My 1985 chevy blazer 1009 former military vehicle keeps shutting off while driving, even after a 1/4 mile of driving. at first it seems as if it is not getting enough air, i took off the air filter to...


change fuel filter; add a can of SEAFOAM to Premium gas. add SEAFOAM every 3-5000 miles. ethanol gas problem. check the plugs, may need to be changed out also.

Aug 30, 2009 | 1985 Chevrolet S-10 Blazer

3 Answers

89chevy truck runs roughly


Isn't it fuel injected? More likely:
Pull plug wires one at a time, the one that has no effect isn't firing. Bad plug or wire.

Aug 25, 2009 | 1985 Honda Prelude

1 Answer

Where do i plug in at to check codes on 85 s10 blazer?


under drivers dash let me know what you find ok

May 26, 2009 | 1985 Chevrolet S-10 Blazer

1 Answer

1985 chevy Blazer cranks up, runs rough, then


have you checked, cady, fuel tank, is it getting the right amount of gas and air? plugs and wires, go with general mantinence first then step up. i have a 85 s10 blazer that was a lemon off the lot but has over 300000 on it and it has the same prob i fix it tempurary by flipping the lid on the breather upside down so it gets more air

Mar 12, 2009 | 1985 Chevrolet S-10 Blazer

1 Answer

Plug wire diagram


This was all I could come with, hope it helps.



ebead53.gif

Aug 21, 2008 | 1985 Chevrolet S-10 Blazer

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

Related Topics:

32 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

75066 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7754 Answers

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

Answer questions

Manuals & User Guides

Loading...