Question about 1999 Oldsmobile Silhouette

1 Answer

Transmission Problem Hello, My 1999 Olds Silhouette feels like it is hitting a bump or has a jerking sensation while driving at around 40-50 mph. This symptom comes and goes. Is this related to the pressure solenoid...is this something I can do myself or does it need to be done by a professional to left the motor or anything? Looking to keep my $700 as I have seen some Postings say. Thank you

Posted by on

  • tthorson Oct 05, 2008

    I have a similar problem.



    The SES light nomes on. The code reader says multiple / random cylinder misfre.



    I have replaced the fuel injectors, spark plugs and plug wires.

    I am going to try the ignition coil towers next.

×

Ad

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.

  • Master
  • 321 Answers

The transmission model in your vehicle is the 4T65E.First,i would scan for diagnostic trouble codes,as the problem could also be the engine misfiring.GM has integrated into the vehicle's computer system the ability to connect a scan tool,and of course record diagnostic trouble codes,but to also look in the data stream real time and monitor each individual cylinder for misfires.The problem should be thoroughly diagnosed and located and isolated exactly before attempting repairs so that money will not be wasted.Also on a good quality scan tool,the transmission can be manipulated to a certain degree,to override the vehicle computer,and also to verify or not,if the trans has a problem internally,or a possible command problem from the computer.The scan tool allows gears to be commanded manually through the scan tool,and line pressure and TCC operation can also be tested.So i would do a much more thorough diagnosis before attempting repairs.

Posted on Aug 22, 2008

Ad

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 there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

3 Answers

Ford explorer transfer case noise


Sounds likes trans problem common to the Explorer, try changing the transmission fluid (mercon V) and add an anti-shudder additive. Does it happen mostly between 45-60 mph?

Oct 18, 2013 | Cars & Trucks

1 Answer

1999 silverado transmission


Since the transmission shifting and torque converter lock (cruise speeds) up are computer controlled you need to have a scanner hooked up that can read Transmission control module (TCM) fault codes. Also check for engine codes as this could be a misfire, but in that case the check engine light should be flashing while the engine is misfiring and set a fault code. If no codes of any kind are present in memory when the testing is done you almost certainly have a mechanical fault in the transmission like a malfunctioning torque converter clutch, but even that should set a fault code, so have the testing done.

Mar 23, 2017 | Chevrolet Silverado Cars & Trucks

1 Answer

My 2002 Mercury Sables gives a "bucking" sensation


Yes Brother, I know that experience. Have a computer test done to find which cylinder is misfiring and replace that fuel injector. It's gone dead and we call this a dead cylinder. Seems like it runs fine, until you hit overdrive. Then it feels like you're running on one square wheel. A steady thump.

Nov 12, 2017 | 2002 Mercury Sable

1 Answer

My cadillac 2005 srx has developed a scary shudder around 35-40 mph and again around 60 mph. It shakes the whole car at these points during a very gradual acceleration. It feels like my transmission...the...


Likely a rotating part hitting a resonant frequency. It might be a universal joint on the drive shaft, a wheel out of balance or tire out of round. You might try lightly touching the brakes while maintaining the same speed. If it's something to do with tires or wheels, that would likely stop it. My first car would oscillate violently after hitting a bump in the road, due to a loose suspension part.

Feb 20, 2018 | 2005 Cadillac SRX

2 Answers

1999 Dodge Ram 360 5.8 liter engine feels like transmission is sl


Hi, the problem you are having sounds like the differential needs replacing this can be expensive and hard work but not doing this can cause further damage to your vehicle so its better get it done sooner rather than later.
If on the other hand your only getting a vibration through the steering wheel then this could be that the wheels need balancing.
You should know which of the two problems you have if you need further assistance then just let me know ok

Aug 05, 2009 | 1999 Dodge Ram

1 Answer

My 95 olds 98 with 71k goes into a jerking fit at around 50 MPH. It feels "electronic" to me as opposed to transmission related.However if I run the car in third gear, the problem is diminished. I can feel...


There are two possible locations to cause this problem.

1) bad ground to ECU
clean and tighten all grounding spot under the hood.

2)leaky air intake tube

False reading to ECU.

Close up all hose on the leaky air tube between air filter box to the air intake on engine block

Jul 15, 2009 | 1995 Oldsmobile Eighty Eight

1 Answer

Transmission slips when cold


The oil needs changing along with filter.

Jun 15, 2009 | 1999 Oldsmobile Silhouette

1 Answer

Maybe a transmission problem?


If you're only in "D", you should switch to "OD" when driving at higher speeds. "D" only allows you to move up to third gear whereas "OD" will move you into fourth. You're over-working your transmission by driving in "D".

Jun 01, 2009 | 1999 Ford Taurus

1 Answer

Transmission / RPM


These cars have a lock up torque converter meaning 4 gear going above 35 to 40 MPH, the engine and transmission lock together and turn at the same rate. I know that older GM cars had a plug that needed to be plugged into the transmission for the lock function to work on the torque converter and if you unplugged it the RPM's would run high as you describe. I have never had a 1999 Silhouette and I'm not 100% sure that these cars have that type of plug but it sounds like that type of problem. I agree with you. You know your car and I would take it to a transmission mechanic and describe your problem to them.

Good luck!

Oct 17, 2008 | 1999 Oldsmobile Silhouette

Not finding what you are looking for?
1999 Oldsmobile Silhouette Logo

478 people viewed this question

Ask a Question

Usually answered in minutes!

Top Oldsmobile Experts

yadayada
yadayada

Level 3 Expert

79865 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8836 Answers

Are you an Oldsmobile Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...