Transmissions

Have Transmission Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Transmissions

Occasionally while driving, no particular conditions, The

Customer Question
engine revs up, trans stops...
Occasionally while driving, no particular conditions, The engine revs up, trans stops pulling . Then if throttle dropped to lower rpm, it comes back in and pulls fine. May not do it again for three weeks.
JA: How many miles are on the car? Is it an automatic or a manual transmission?
Customer: 130 K, 4L8E auto trans, Ithink.
JA: What is the model/year of your Chevy?
Customer: 2008 2500 express van
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: Trans shop put in a couple solenoids as a Hail mary. ( This guy also says you can put any old kind of red trans fluid in it and it will be fine???) He changed oil and uses bulk purchased "Mag 1"
JA: I'm 40 . Forty something.
Customer: I did not ask your age. But thanks for that. But....Are you married?
JA: No. I'm the Chevy Mechanic's Assistant.
Customer: Cool
JA: Anything else you think the mechanic should know?
Customer: The usual driver says it does not seems like a "slip". More like a switch or breaker or relay drops out and the trans just goes like into neutral.
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Chevy Mechanic about your situation and then connect you two.
Customer: I am 66 and a bit of a motor head all my life.
Submitted: 1 year ago.Category: Transmissions
Show More
Show Less
Ask Your Own Transmissions Question
Answered in 4 hours by:
6/10/2016
Transmission Mechanic: hdgene, ASE Certified Technician replied 1 year ago
hdgene
hdgene, ASE Certified Technician
Category: Transmissions
Satisfied Customers: 6,000
Experience: 28 Years Automotive experience,ASE Master & L1 certified. Ford certified trans rebuilder
Verified

Hello, for one, you need to use the specified fluid that is marked on the dipstick to make sure you dont have any shifting issues. Did it have any diagnostic trouble codes stored prior to the solenoids being replaced? Any codes stored now? Will it come back into gear if you wiggle the shifter? Was any metal debris found in the pan when it was dropped to replace the solenoids?

Ask Your Own Transmissions Question
Customer reply replied 1 year ago
No codes, before or after solenoids replaced. No ferrous and very little aluminum color, no flake. Wiggling shifter not tried by driver, just back off throttle and it came back and no more trouble for weeks. Wondering about likelihood of dropping transmission elec. power briefly, like from relay, fuse, or TCM dropping out briefly.
No disrespect, but website said a Chevrolet technician would address this issue. I think GM guy might just have seen this exact situation before and put me on the path.
Transmission Mechanic: hdgene, ASE Certified Technician replied 1 year ago

Not a problem, I was going to say if you wiggle the shifter and it pops back into gear it would be an issue with a electronic transmission range sensor, this would not set any diagnostic trouble codes sometimes. Otherwise, with the trans dumpin back into gear by backing off the throttle sounds like an internal hydraulic leak, either caused by a worn or knicked seal or valve body issue. Since it is an intermittent fault, this is the hardest part about isolating the concern. But with the mileage on the trans, it can be a worn or hard seal or valve sticking in the valve body.

Ask Your Own Transmissions Question
Transmission Mechanic: hdgene, ASE Certified Technician replied 1 year ago

Hello, do you need more help with this concern?

Ask Your Own Transmissions Question
Customer reply replied 1 year ago
The driver has not had another episode of the trans "drop out" since I put in for your help. But he mentioned to me yesterday, (a BTW), that when he is cruising the freeway on cruise control, that the cruise control will drop out altogether. Since his foot is not on the accelerator pedal, the engine does not rev up as it has when the transmission dropped out. However he is sure that they drop out of both functions is occurring simultaneously and are related.
So does that bit of information confirm suspicion about the module or control you mentioned before? Put me on the path to the root cause, please.
Transmission Mechanic: hdgene, ASE Certified Technician replied 1 year ago

If it is an issue with the transmission range sensor and dropped int neutral you would think the rpm would flare as it tries to throttle up and maintain speed. The cruise could be dropping out due to an issue with a brake pressure switch/stop lamp switch or problem with the servo that controls vehicle speed. I dont see them be directly related. But anything is possible. You would need to test the cruise system to see what might be causing this concern

Ask Your Own Transmissions Question
Ask hdgene Your Own Question
hdgene
hdgene
hdgene, ASE Certified Technician
Category: Transmissions
Satisfied Customers: 6,000
6,000 Satisfied Customers
Experience: 28 Years Automotive experience,ASE Master & L1 certified. Ford certified trans rebuilder

hdgene is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry.

Stephanie PElm City, NC

used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

David L.Richmond, TX

9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

PhilMarysville, CA

Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible.

CharlesWalnut Creek, CA

As a single woman, I really appreciate an excellent and affordable opinion.
Thank you Geordie, I will not hesitate to contact justanswer in the future!

SueCharleston, WV

Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff.

JimCastleberry, FL

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

< Previous | Next >

Meet the Experts:

Chris (aka- Moose)

Chris (aka- Moose)

Technician

1,788 satisfied customers

16 yrs. experience with auto, manual, & CVT drivelines

Tim&#039;s Auto Repair

Tim's Auto Repair

Mechanic

496 satisfied customers

I have been rebuilding automatic transmissions for 25 years

Gary

Gary

ASE Certified Technician

396 satisfied customers

25 years GM master tech

Mike Kelly

Mike Kelly

ASE Certified Technician

150 satisfied customers

17 years experience as an auto mechanic, foreign and domestic. 5 years running my own repair business.

Matt

Matt

Engineer

134 satisfied customers

Mechanical Engineer BEng Hons22 years experience in car engine industry, 10 years in formula 1

Dave Nova

Dave Nova

ASE Certified Tech

98 satisfied customers

ASE Master Certification. 25 yrs experience

John Mc

John Mc

Trans specialist

93 satisfied customers

Transmission dealer tech for over 19 years

< Previous | Next >

Related Transmissions Questions
I have a 2000 sephia with a clutch problem. In the course of
i have a 2000 sephia with a clutch problem. In the course of about a week the clutch has started slipping very bad (rpms but very little foward motion) shifting is still smooth and the pedal still fee… read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
1,788 satisfied customers
I JUST REPLACED THE TRANSMISSION ON MY BMW X5 E70 3.0D FOR
I JUST REPLACED THE TRANSMISSION ON MY BMW X5 E70 3.0D FOR AN USED ONE … read more
6Bucs
6Bucs
Senior Master Tech
Associate Degree
972 satisfied customers
Goes intoby itself. 2003 acrua mdx. Disingagedbut it keeps
goes into*****by itself JA: Besides this, what condition is the car in? Customer: ok JA: What is the model/year of your Acura? Customer: 2003 acrua mdx JA: Are you fixing your vehicle yourself? What h… read more
Gabriel Grey
Gabriel Grey
Master Service Technician
Associates
372 satisfied customers
It shit the big one ,200 f-250 super duty 4x4 5.4 auto 4R100
it shit the big one ,200 f-250 super duty 4x4 5.4 auto 4R100 what fits ,expidition? navagator / 6.8? … read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
1,788 satisfied customers
I have a 2001 honda civic with the bmxa transmission. After
I have a 2001 honda civic with the bmxa transmission. After changing the internal filter and reassembling the transmission, the car will not move back in reverse and moves forward in neutral, just as … read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
1,788 satisfied customers
It will not shift out of 1st gear. Its a 1999. Villager
it will not shift out of 1st gear JA: How old is the transmission? Have you checked the brake switch? Customer: its a 1999 JA: What is the model of your '99 Mercury? Customer: Villager sport JA: Are y… read more
sprinkles08
sprinkles08
Technician
High School or GED
17,399 satisfied customers
It shit the big one ,200 f-250 super duty 4x4 5.4 auto 4R100
it shit the big one ,200 f-250 super duty 4x4 5.4 auto 4R100 what fits ,expidition? navagator / 6.8? … read more
JOHN aka Eauto
JOHN aka Eauto
self employed
High School or GED
10,348 satisfied customers
Shifts hard and wont shift at times. rpm goes up but wont
shifts hard and wont shift at times. rpm goes up but wont shift. … read more
Peter Zavarelli
Peter Zavarelli
General auto certifications
269 satisfied customers
Hom amny quarts of tranny fluid do i need and will will
hom amny quarts of tranny fluid do i need and will will Castrol Transmax import multi vehicle work on my 2015 frontier … read more
Eric
Eric
Retired
N/A
31,322 satisfied customers
2008 ford f250 low 4x4 light flashing engine surges when low
2008 ford f250 low 4x4 light flashing engine surges when low 4x4 … read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
1,788 satisfied customers
My 2003 Yukon wont move in dr or 3 but will move in 1 or 2
my 2003 Yukon wont move in dr or 3 but will move in 1 or 2 drive … read more
GM Tech (Cam)
GM Tech (Cam)
Owner/Technician
Vocational, Technical or Trade Scho
26,172 satisfied customers
Transmission is stuck in limp mode. A few days ago. 2008
Took it to a shop a and they tested a bunch of the wires, solenoid pack etc. They dont know the casue of it. It comes out of limp mode and then goes back to normal and drives fine … read more
sprinkles08
sprinkles08
Technician
High School or GED
17,399 satisfied customers
Vibrates at 45 to 55 mph shifts a little hard will go away
vibrates at 45 to 55 mph shifts a little hard will go away if you press on the gas or let off of the gas has new u joints … read more
Peter Zavarelli
Peter Zavarelli
General auto certifications
269 satisfied customers
Intermittent problems going into first gear. 143500 miles.
not trying to fix it myself.had the fluid and filter changed … read more
vwtech0405
vwtech0405
VW Technician
Associate Degree
9,666 satisfied customers
Service 4WD message is on...? Won't engage in 4WD Lo --
Service 4WD message is on...? Won't engage in 4WD Lo -- light just blinks and stays in 4WD Hi? … read more
Todd Audette
Todd Audette
Automotive Technician
Vocational High School
137 satisfied customers
My 2010 Suburban 4wd 5.3L transmission does not engage
my 2010 Suburban 4wd 5.3L transmission does not engage properly. I started it, put transfer int 4WD (it had snowed overnight) and put tranny in R: no engagement at all; I revved gently and still no en… read more
Todd Audette
Todd Audette
Automotive Technician
Vocational High School
137 satisfied customers
Sluggish when accilerating. 2011. Ram 2500. Removed and
sluggish when accilerating JA: How old is the transmission? Have you checked the fuel filters? Customer: 2011 JA: What is the model of your '11 Dodge? Customer: ram 2500 JA: Are you fixing your Ram yo… read more
-Brad-
-Brad-
Technician at Dodge Dealership
Vocational, Technical or Trade Scho
7,982 satisfied customers
86 bronco II - jumps will not shift into 5th gear. 31 years,
86 bronco II - jumps will not shift into 5th gear. … read more
Roy
Roy
shop foreman
Associate Degree
3,921 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x