Question about 2002 Chevrolet Blazer

1 Answer

My 2002 chevy blazer cuts out or bucks at highway speeds

Why does my 2002 chevy blazer cuts out or buck at highway speeds?

Posted by Anonymous on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Cheetah:

    An expert who has answered 20 or more questions within one hour.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Chevrolet Expert
  • 167 Answers

Is there any check engine lights on? also a leak in the vacuum lines will make it jump in and out of over drive. could be a few problems. wish i could help more, sorry. if you have a vacuum leak it would also make you heater controls not work like they should, like if you put it on defrost it will only come out the vents and so on.

Posted on Jun 13, 2014

Ad

5 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

Ad
  • 713 Answers

SOURCE: 2000 silverado 4.3 5 speed truck bucks at part

sounds like it is in the throttle sensor or idle control valve causing problem not responding fast enough to take over also try the fuel filter could be clogged.

Posted on Aug 30, 2009

  • 1206 Answers

SOURCE: I have a 1999 chevy blazer with 124000miles that

the best way is to have the radiator gases analyzed this will tell you if its a head gasket issue for sure and if so when you have it all apart send the heads to a machine shop for x rays to see if they are cracked. Matco tools sells a gas analyzer kit that anyone can use for about 60 bucks.also others on the web.

Posted on Jan 20, 2010

roniecon
  • 6826 Answers

SOURCE: bucks and stalls

Need to have it put on a code reader,auto zone can do this for you,for free.

Posted on Jan 23, 2010

jturcotte
  • 8270 Answers

SOURCE: 1995 Chevy Blazer 4.3L V6......running

Hi, sounds like your timing chain may have slipped a tooth. Unfortunately, with a pushrod engine, you have to take the front off the engine to check valve timing. Timing gear marks should align as shown below. If they don't, replace the chain.

jturcotte_1205.gif
CAUTION Never open, service or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. Also, when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantities. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old.

  1. Disconnect the negative battery cable and drain the engine cooling system.
  2. Remove the crankshaft pulley and damper.



WARNING The outer ring (weight) of the torsional damper is bonded to the hub with rubber. The damper must be removed with a puller which acts on the inner hub only. Pulling on the outer portion of the damper will break the rubber bond or destroy the tuning of the unit.

  1. Remove the water pump assembly.
  2. Loosen the oil pan.
  3. If applicable, remove the crankshaft position sensor.
  4. Remove the front cover bolts and, if equipped, the reinforcements, then remove the front cover from the engine.
  5. Pry the seal out of the front cover using a small prytool. Be very careful not to distort the front cover or to score the end of the crankshaft.

To install:
On 1995-99 models, anytime the front cover is removed, the cover must be replaced upon reassembly. If you reuse the old cover, oil leaks may develop.
  1. Clean the gasket mating surfaces of the engine and cover of all remaining gasket or sealer material. Be careful not to score or damage the surfaces.

The manufacturer suggests you wait until the front cover is mounted to the engine before you install the replacement crankshaft oil seal. This assures the cover is properly supported.
  1. Position a new front cover gasket to the engine or cover using gasket cement to hold it in position. Lubricate the front of the oil pan seal with engine oil to aid in reassembly.
  2. Install the front cover to the engine. Take care while engaging the front of the oil pan seal with the bottom of the cover. On 1998-99 models, apply sealer 12346141, or an equivalent sealant to the oil pan rail where it contacts the timing cover-to-block joint (front) and the crankshaft rear seal retainer-to-block joint (rear). Continue the bead of sealant about 1 in. (25mm) in both directions from each of the four corners.
  3. Install front cover retaining bolts and tighten to 124 inch lbs. (14 Nm) on 1994-95 models and 106 inch. lbs. (12 Nm) on 1996-99 models.
  4. Lightly coat the lips of the replacement crankshaft seal with clean engine oil, then position the seal with the open end facing inward the engine. Use a suitable seal installation driver to position the seal in the front cover.
  5. If removed, install a new crankshaft position sensor O-ring, then install the sensor.
  6. Secure the oil pan.
  7. Install the water pump.
  8. Install the crankshaft damper and pulley.
  9. Connect the negative battery cable, then properly refill the engine cooling system.
  10. Run the engine until normal operating temperature has been reached, then check for leaks.

Posted on Mar 10, 2011

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

96 mercury grand marquis bucking


try tuneup and fuel filter first would be my suggestion.

Aug 19, 2012 | 1996 Mercury Grand Marquis

1 Answer

Just bought a 94 chevy blazer 4.3 vortex motor.digital speedo not working how do i hook it back up?


Your "speed sensor" is located on the transmissions tailshaft. It's possible the wire clip is detached, but usually the issue is a bad "speed sensor". There are a few different types of speed sensor for your vehicle year; depends on 2wd, 4wd, and vin#. It should be a easy fix, but speed sensors can cost a few bucks. I hope this helps you, and I wish you luck on your repair.

Aug 23, 2010 | 1994 Chevrolet S-10 Blazer

1 Answer

I have a 1999 chevy blazer with 124000miles that overheated on the highway,. Now the engine runs rough at an idle but seems ok on the highway. Several different mechanics said different things from a...


the best way is to have the radiator gases analyzed this will tell you if its a head gasket issue for sure and if so when you have it all apart send the heads to a machine shop for x rays to see if they are cracked. Matco tools sells a gas analyzer kit that anyone can use for about 60 bucks.also others on the web.

Jan 20, 2010 | 1999 Chevrolet Blazer

1 Answer

96 chevy blazer, just clicks when trying to start, have checked all connections, clicking sound coming from distributor area. Had battery tested and starter checked, both ok.


The only thing you have not checked is a solenoid starter. This culprit is a small cylinder one on top of your starter in the attached images. If you don't want to replace the solenoid starter at 43 bucks, you can rebuild it with a repair kit at 1 buck. I have 2 images here for you reference. Good luck.e24a5ea.jpg 1bf93b8.jpg

Dec 28, 2009 | 1996 Chevrolet Blazer

1 Answer

My power locks will not work on my 2002 chevy Blazer... they just stopped working ? any tips? the fuse on the inside door seems to look good...


well although it {the fuse looks good did you pull the fuse to inspect and ensure the fuse truly is good and not blown ...otherwise the wires between the door jamb have broken from the constant wear from opening and closing the door or the switch is malfunctioning { gone bad} and testing with a test light will help you determine exactly this a test light is about 8or 10 bucks for a cheaper one {{{ but 1st most check the fuses }}} it may save you time and money before you begin tearing into wiring etc...

Dec 17, 2009 | 2002 Chevrolet Blazer

1 Answer

BUCKING AT HIGHWAY SPEED AND THEN STALL


the tps works in conjunction with the pcm . the you try hooking it up tp the computer again.

Oct 07, 2009 | 2004 Jeep Grand Cherokee

1 Answer

Bucking on Hard Acceleration


You best bet would be to look for the vacuum diagram and just take a day to make sure all of the lines to the engine and tranny are all correct. If its not it and while bucking the car feels like its going to turn off on you then it maybe a fuel delivery problem.

Aug 28, 2008 | 2002 Ford Taurus

2 Answers

2002 chevy actuator


you will probably have to replace tha actuator that operates the latch its about 30 bucks

Aug 08, 2008 | 2002 Chevrolet Blazer

Not finding what you are looking for?
2002 Chevrolet Blazer Logo

151 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

76109 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8269 Answers

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

Answer questions

Manuals & User Guides

Loading...