Question about 2003 Chevrolet TrailBlazer

1 Answer

Shifts rough in 1st gear and lose overdrive at times

I have a rough shift in 1st year, and the fan reves high up to 45 mph, the fan clutch seams to be sticking, but then on the highway I will lose overdrive and the fan will kick on. I initially thought it was the fan clutch until I saw the RPMs where around 3,000 at 60mph. Is this an electrical problem with the transmission because I don't have any leaks and the transmission fluid level is fine.

Posted by on

1 Answer

  • 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.

  • Contributor
  • 3 Answers

On the older style blazers the fan clutches did fail and would often be misdiagnosed as shifting problems as the clutch engaged and disengaged.... also a hard 1-2 shift can be due to your vehicle storing a transmission fault code in the ecm... some transmission fault codes will put the transmission into a fail safe or limp mode in which it engages high line pressure .... this can cause your hard 1-2 shift and will feel normal most of the time other than that. high mileage on the transmission fluid may also require it to be flushed and have the filter kit replaced

Posted on Jul 23, 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:

1 Answer

Transmission shifts hard


You don't give me much information to work with. However, 1st, look at the engine mounts. You may have a broken mount. This will make it feel like the transmission is shifting hard. Other than that, there is only a few things that will cause this. The speed sensor tells the computer when to shift the shift solenoids. It may not be "seeing" a quality signal. If this is the case, the speedometer will be bouncing too. Last idea is that it is skipping a gear. Starts in 1st, should go to 2nd at about 10 MPH. 3rd at 25 to 30 MPH. And, if you have a Overdrive transmission, it should go into overdrive at around 45 to 55 MPH. If it is skipping 2nd, it will engage 3rd at a high engine speed, and will feel like a sudden slam into gear. If this is true, your transmission needs some work. Hope this all helps. Good Luck.

Jun 19, 2014 | 2002 Pontiac Sunfire

2 Answers

Jeep cherokee jerks when shift into overdrive going 45 mph


If the engine has a rough idle you know you have a miss-fire or other problem with one or more cylinders.
When you shift into overdrive the engine is working harder than in normal drive because of the lower torque/RPM.
So any slight miss under normal conditions will be magnified in overdrive or with the ac on.
See if you can nail down the cause for the rough idle.

Jul 19, 2012 | Jeep Cars & Trucks

1 Answer

Transmission shifts between overdrive and third at


When the trans is cold it will shift almost normal as of now. If you keep driving it it will eventually slip when its cold. This is caused by worn out clutch plates
Your trans needs to be overhauled with a clutch rebuild kit

Apr 10, 2010 | 2001 Jeep Cherokee

2 Answers

MY TRANS WONT SHIFT INTO THIRD GEAR UNTIL IM DOING 45 MPH IT SHIFTS FINE IN FIRST AND SECOND GEAR WHEN IT IS IN SECOND GEAR AND WONT SHIFT TO THIRD I CAN PUT IT IN N AND BACK TO OVERDRIVE THEN IT SHIFTS.


Most likely your shift cable (from the selector to the transmission) is worn, maybe needs lubrication. Mine had a similiar problem, but had to shift it into neutral and back up to get it in reverse. A new shift cable solved the problem.

Jul 27, 2009 | Lincoln Town Car Cars & Trucks

2 Answers

Car will not shift into overdrive


As a response to solution #1 these cars do have an overdrive while in D-4, mine was shifting in and out at 70 mph until it finally quit and the rpm is now 3100 at 70 mph insted of 2700. The car still shifts 4 full times just not the fifth-OD. I still can't find out what fixes this problem either.

Jun 09, 2009 | 1993 Honda Accord

1 Answer

Shifting Problem Auto Tranny


You are going to need the transmission rebuilt.

Jul 06, 2017 | 1994 Volkswagen Passat

1 Answer

Automatic transmission Shift problem


you should first check gear box oil ,level and clean filter.lee

Jan 31, 2009 | 1991 Mitsubishi Galant

1 Answer

1996 TBird 4.6 auto/overdrive trans problem


Your transmission fluid contain water,thats why the colour of the fluid changed to pink.And of such the clutch is slipping causing the engine to reve up before shifting - Check transmission cooler.

Aug 21, 2008 | 1996 Ford Thunderbird LX

Not finding what you are looking for?
2003 Chevrolet TrailBlazer Logo

414 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

75197 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7782 Answers

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

Answer questions

Manuals & User Guides

Loading...