Best Answer

Vacuum leak. ... also try cleaning the EGR valve.

User Avatar

Wiki User

โˆ™ 2009-04-18 04:36:03
This answer is:
User Avatar
Study guides

Create a Study Guide

Add your answer:

Earn +20 pts
Q: What would cause a rough idle on a 1998 Chevy blazer w43 just change plugs and wires and clean thottle body rechecked to see if plugs were cracked and evrything is OK No trouble codes present?
Write your answer...
Related questions

Where is the thottle plate?

In the throttle body.

How do you remove the speed governor on a 1994 E350 16ft box truck?

As far as I know the only road speed governor would be an aftermarker unit. It can be removed but you would have to know what you're doing. The ones I've seen take the thottle cable off the thottle body and run it to the aftermarket unit. Then a new cable from the unit back to the thottle body. I guess you could hook the original cable back to the thottle body and "by-pass" the unit. Rich

Does a crf150r have a power band?

Irk but it feels like it at half thottle

Why wont thottle cable go into tube on your 1974 vw sedan?

The tube must be pinched or bent.

How do you adjust thottle body 1990chevy 4.3 engine?

It is not adjustable...... It has been pre set at the factory.

Where is 1987 astro van map sensor located?

The MAPP sensor is located on the passengers side of the thottle body. Remove the "dog box" and when looking from the inside of the vehicle you should see it on the right side of the thottle body. It's kinda tricky to remove ...but it is do-able. Good Luck ... hope this helps. MR. X

Where is the coolant temperature sensor located Honda civic 1997?

right in front of the thermostat on the bottom rad hose beside the thottle body

Why wont your car rev after half thottle?

If the vehicle is in neutral or park and it doesn't rev over half throttle, it is the rev limiter (governor). That is normal.

Where is the IAT Sensor on a 1999 Honda accord it's not on the air intake tube or box?

On the V6 acc. just connected under the thottle body.

Your 1991 mr2 dies when its cold as soon as its warm its fine If you let go of the thottle when it is cold the engine just dies Whats broken?

Does it have a choke? get it fixed.

Where is the MAP sensor on a 1992 Dodge Dakota 3.9?

lookin at engine from the front it is located to the right above the valve cover close to the thottle body. has a wire and vacume hoses on it

1994 Pontiac Bonneville idle out of controlThe thottle body don't stick.but you can turn the car off and back on and it idles good?

have them check the codes , but prob will be the throttle position sensor is out of whack.

Does anyone know how to clean an idle speed control valve and where is the throttle body located on a 2000 Toyota Camry?

The thottle body is connect to the plantum right in front of the air filter housing the throttle cable is connected to it.

Where is idle air control valve located on a Mitsubishi eclipse 2003 gs?

It's located on, but right below your thottle body with 3 screws like a sensor. You will be able to find it if you take off your stock/aftermarket Intake.

Where do you find the idle air control valve on a 2001 Ford Crown Victoria?

its on the back side of the thottle body on top of the intake manifold. There are some good pictures showing the location and instructions for repair/replacement at specifcally for the Crown Victoria.

The ECM has detected too little flow on the EGR system?

This is generally the explanation when you get a PO401 check engine code. It is ussually caused when the carbon builds up in the channel leading from the EGR through and into the thottle body. Most of the time it can be fixed by cleaning the passage with a good carb cleaner and a wire pipe cleaner restoring the flow of air through the passage. Sometimes you might have the replace any one of the EGR Value, EGR Solinoid or the EGR Pressure Sensor. These can be costly, so begin with the cleaner. You may have to remove the thottle body face plate to gain better access to the channel.

Why does my 2002 Pontiac grand prix gas pedal stick could it be the throttle body?

Yes it could be the throttle body and this was the case with mine. Mine would be stuck when the car was not used for a day or so but otherwise worked fine. The accelterator had to be pressed hard and when it broke free, there was more than desired acceleration. I found the thottle body to be gummed up pretty bad particulaly on the down stream side. I could not clean it well without removing the thottle body. Once I had it removed, cleaning was easy with some carb cleaner and a toothbrush. Cleaning the throttle body restored normal function.

Ford c6 transmission won't shift from 2nd to 3rd with out lifting the thottle?

Likely, your shift linkage from the carb to the tranny has become disconnected. Or, it's designed that your engine is supposed to slow so the transmission can safely shift gears. I say just live with it. It's not causing any problems.

Why would your car stall in reverse when you press on the gas a little?

Idle speed incorrect , fuel filter clogged , fault in fuel system , faulty emissions system components , faulty or incorrectly gapped spark plugs , vacuum leak at the thottle body , intake manifold or vacuum hoses

What would cause a 96 s10 blazer to be completely gutless i just rebuilt the engine and replaced all o2 sensors map sensor egr valve air filter etc?

try changing the cat. they plug up causing motor not to breath under thottle but will idle great....

How do you lower the idle on a 1989 Geo Metro?

There should be a idle set screw on your application. If not, then this is done at the factory, and covered up so you cannot reset it. I believe on a 1989 there should be a thottle ajustment. Just follow your cable from the fire wall, should take you right to it. Good luck

90 olds ciera s When driving engine surges and misses espically when going up hill Replaced plugs and cleaned throttle body Fuel pressure at 37 psiAny ideas?

Wires from distributor can age and loose conductivity, especially under high voltage of full-thottle acceleration.

I was cutting grass with a craftsman DYT 4000 kohler 19hp 42 deck and the engine bogged down i turned the thottle down and the tractor died and it will not start?

If you were cutting the grass with any type of lawn mower and it dies, it is most likely not a big deal. It could simply mean that you need more gas.Ê

Why might a 1976 Nissan pickup hesitate when accelerating or in neutral?

1 spark plugs worn , fouled or not gapped properly. 2 fuel filter clogged. 3 spark plug wires faulty. 4 low or uneven cylinder compression presures. 5 vacuum leaks at the thottle body , intake manifold or vacuum hoses .

1993 s-10 blazer with 43 vortec when i take off it is very slugish like it's losing power to push it then it starts to shake real bad my dad said it might have to do with the passing gear any answer w?

first i would change the tranny fluid and filter. if not the the thottle position sensor may be going bad.