Toyota

Have Toyota Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Toyota

1986 toyota pickup: trying to get running for awhile now..carbs

Customer Question
I have a 1986 toyota...
I have a 1986 toyota pickup I have been trying to get running for awhile now. The problem that I am having is, I have tryed about four rebult carbs. that work at first then from four days to as long as three weeks it does not want to work anymore. Right now it idles good but if you accelerate it will die. I have looked for vaccum leaks, it is getting gas, already changed the fuel filters. I am confused with it works then it wont. Any help or ideas would be appriciated.
Submitted: 7 years ago.Category: Toyota
Show More
Show Less
Ask Your Own Toyota Question
Answered in 2 minutes by:
8/16/2010
Toyota Mechanic: stone314, degree replied 7 years ago
stone314
stone314, degree
Category: Toyota
Satisfied Customers: 70
Experience: Automotive Degree
Verified
Chat Conversation Started
stone314 :

Thank you for choosing Just Answer.com are you getting enough fuel?

Customer:

yes the fuel glass shows plenty of fuel, I did have a problem with that earlier but I put a new fuel pump on already

stone314 :

I have you checked the filter again since you changed it last?

Customer:

on the sight glass the fuel is just above the half mark and stays there as I try to throttle up the carb.

Customer:

Is there anything electrical on the carb that could cause this problem? or is the connector just for the choke?

Customer:

I have turned the truck off and looked to see if there was a good stream of fuel as I turned the throttle and it looks like there is.

Customer:

This last carb. I have is a Vapex from O'Reilly, all of the carbs. are from this place.

stone314 :

So it starts and stalls?

stone314 :

Try this may help

stone314 :

SYMPTOM - ENGINE OFTEN STALLS


<!-- var HIGHNONE = ''; var LOWNONE = ''; // -->





<!-- var CAPTION62574868 = &#34;&#34;; // -->











[IMAGE][SRC][/SRC][ALT][/ALT][WIDTH]87.23747980613893[/WIDTH][HEIGHT]100[/HEIGHT][STYLE][/STYLE][/IMAGE]





<!-- var HIGHNONE = ''; var CAPTION62574868 = &#34;&#34;; // -->







<!-- var HIGHNONE = ''; var LOWNONE = ''; // -->













[IMAGE][SRC][/SRC][ALT][/ALT][WIDTH]137.05583756345177[/WIDTH][HEIGHT]100[/HEIGHT][STYLE][/STYLE][/IMAGE]

Ask Your Own Toyota Question
Toyota Mechanic: stone314, degree replied 7 years ago
Chat Conversation Ended

If you are still working with your Expert on this question, you can post additional replies and receive additional information on this page.  If you received a satisfactory answer in Chat, you can accept the chat conversation above.
Ask Your Own Toyota Question
Toyota Mechanic: stone314, degree replied 7 years ago
SYMPTOM - ENGINE OFTEN STALLS



Ask Your Own Toyota Question
Customer reply replied 7 years ago
No, It starts good, idles good, but as I throttle up it will start to die, if I let off the gas it will go back to idling good again, but if I continue giving it gas it will die.
Toyota Mechanic: stone314, degree replied 7 years ago
Check your egr valve
Ask Your Own Toyota Question
Customer reply replied 7 years ago
Ok I will check that and get back with you, I think I replaced that it already but not positive. Thanks
Customer reply replied 7 years ago
Ok I did what the books says, to disconnect the hose that comes out of the EGR valve, then disconnect the hose that comes out of the exhaust manifold and hook the hose from the exhaust to the other side of the valve and the car should stall. It does not stall unless I give it gas like it has been doing. Does that mean I need a new valve and should the truck work if I plug the hose coming from the exhaust manifold and give it gas or should it still stall?
Customer reply replied 7 years ago
I made a mistake, I did not check the EGR valve I removed and checked the EACV. I have found the EGR valve now but am not sure how to check it, the book says to disconnect the vac hose leading from the valve, then disconnect the hose coming from the intake manifold and connect it to the empty pipe on the valve, but I only have one hose to the valve, in the book I do see other years have two hoses.
Toyota Mechanic: stone314, degree replied 7 years ago
Testing and Inspection
  1. Disconnect and plug vacuum hose to EGR valve, start engine and observe engine idle. If engine runs rough or stalls, check for improperly seated EGR valve.
  2. Apply manifold vacuum directly to EGR valve with engine running at idle.
  3. If engine does not run rough or stall, EGR valve is defective.

 

Ask Your Own Toyota Question
Customer reply replied 7 years ago
I dont have a manifold vacuum hose only one hose that come from a tube that looks like it comes from the BVSV, this tube also hooks up to either the choke opener or choke breaker on the carb and some other hoses that go to the carb. Sorry for being so difficult but I am looking at the book also and wanted to try that but could only find the one hose, I looked at buying a new one and notice the other port for the hose but mine does not have that.
Customer reply replied 7 years ago
I was able to create a vacuum on the EGR valve and the truck did stall. If I put my hand over the carb., not completely but about half and give it gas it seems to accelerate pretty good, does that help any. It acts like it is not getting enough gas, but like I said before I watch the glass on the carb and the gas stays alittle above the half mark. I have been working on trying to get this truck to work correctly for about 6 months now. Everytime I put a new carb. on like said it works for awhile then it acts up like this again.
Toyota Mechanic: stone314, degree replied 7 years ago
Is there good clean fuel in the tank?

Ask Your Own Toyota Question
Customer reply replied 7 years ago
I am pretty sure the gas is good, The last time I put gas in it was about three weeks ago the truck was running good, then started acting up, I put it away for about a week replaced the carb. with a rebuilt one again, it started right up ran great, drove it that day, let it sit for about two days, after about two days I went to drive it again, it started good, idled good but trying to accelerate it would die.
Toyota Mechanic: stone314, degree replied 7 years ago
I am leaning towards the egr valve

Ask Your Own Toyota Question
Customer reply replied 7 years ago
I did the vacuum test but the car did not stall or die, do you still think it could be that, is there another test I might be able to try. It make sense but I dont want to spent $160.00 and that not be it.
Toyota Mechanic: stone314, degree replied 7 years ago
Ofcourse I understand
Ask Your Own Toyota Question
Toyota Mechanic: stone314, degree replied 7 years ago

Some 1985 carbureted, federal emissions specification trucks may exhibit a slight hesitation when accelerating from a stop, or during light throttle acceleration at low speeds.

CAUSE:

This condition may be caused by:

(1)Lean air fuel mixture.
(2)EGR influence on lean mixture.

 

CORRECTION:

(1)Operating temperature of the EGR valve BVSV has been changed from 40~C to

 

60~C.

(2)Diameter of the slow jet has increased from 0.50mm to 0.52mm.

 

(3)Diameter of the main jet has increased from 1.14mm to 1.17mm (ATM) or 1.16mm (MTM).

 

(4)On high altitude specification vehicles, the carburetor air horn has also been changed to allow installation of the new jets.

 

PRODUCTION EFFECTIVE: From Engine Number Production Date

 

22R-1590303 September, 1985PART NUMBER INFORMATION:

 

The following part numbers have changed in production as of September 1985.

Previous Part Number New Part Number Part Name

 

21100-35290 21100-35291 Carburetor Assy (MTM) 21100-35301 21100-35302 Carburetor Assy (ATM) 25820-13010 25820-13020 Valve Assy Bimetal

 

SERVICE REPLACEMENT PART NUMBER INFORMATION:

To correct a hesitation condition on vehicles produced prior to September 1985 the following parts must be replaced as a set.

Part Number Part Name

 

21205-35210 Jet, sub assy, slow (ATM & MTM) 90999-41116 Jet, first main (MTM) 90999-41117 Jet, first main (ATM) 25820-13020 Valve assy bimetal, (ATM & MTM)

 

On high altitude specification vehicles the air horn must also be replaced.

Part Number Part Name

 

21112-35291 Horn, air (MTM, high altitude) 21112-35300 Horn, air (ATM, high altitude)

 

 

Ask Your Own Toyota Question
Ask stone314 Your Own Question
stone314
stone314
stone314, degree
Category: Toyota
Satisfied Customers: 70
70 Satisfied Customers
Experience: Automotive Degree

stone314 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:

THANK YOU, THANK YOU, THANK YOU!! I've got my baby back. Tomorrow I will get a tank of high octane, remove the top, go for a long long ride and enjoy my car. THANK YOU!

JugheadUSA

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

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

Chris (aka-Moose)

Chris (aka-Moose)

Auto Technician

965 satisfied customers

16 years of experience

Marty

Marty

ASE Certified Technician

175 satisfied customers

ASE & Bosch Master Tech. 30 years experience.

Amedee

Amedee

Toyota Technician

1,225 satisfied customers

ASE certified tech advanced level specialist. Wisconsin certified emissions state inspector

Anthony

Anthony

ASE Certified Technician

401 satisfied customers

ASE Master Automobile Technician with over 20 years exp. in this field.

Richard

Richard

ASE Certified Technician

9 satisfied customers

Toyota tech. ASE Certified Technician

Skyvisions

Skyvisions

ASE Certified Technician

12,676 satisfied customers

Toyota Master Diagnostic

Genchi Genbutsu

Genchi Genbutsu

Toyota Master Technician

3,761 satisfied customers

Toyota Certified Master Diagnostic Technician, ASE Master Technician with L1 Advanced Engine

< Previous | Next >

Related Toyota Questions
The fuel pump relay is working but there is no power for the
Hi the fuel pump relay is working but there is no power for the fuel pump at the relay. … read more
Jaybird61
Jaybird61
Master Automotive Mechanic
1,879 satisfied customers
Fuel pump stay a running even with the ignition switch
Fuel pump stay a running even with the ignition switch removed. It will start and run for a second then die. … read more
Jaybird61
Jaybird61
Master Automotive Mechanic
1,879 satisfied customers
No power to the fuel Pump. Constant. 1989. Replaced the fuel
No power to the fuel Pump. JA: Is the power loss consistent, or does it fluctuate? Customer: Constant. JA: What is the model/year of your Toyota? Customer: 1989 JA: Are you fixing your vehicle yoursel… read more
Toyota Service
Toyota Service
Toyota Dealership Service & CR Manager
1,344 satisfied customers
I need to know where the fuel pump relay is located on it. I
I need to know where the fuel pump relay is located on it … read more
Mechanic01
Mechanic01
1,128 satisfied customers
I have a 1996 Tacoma 2wd 2.4L. It started out as a fuel pump
I have a 1996 Tacoma 2wd 2.4L. It started out as a fuel pump problem, pump was replaced and fixed the starting problem but gave an po336 code. Somehow at the shop it showed the code and the following … read more
ted ritter
ted ritter
Team Leader/toyota master tech/retired
High School or GED
2,692 satisfied customers
I have a 1989 Camrey that needs a fuel pump i don't want to
I have a 1989 Camrey that needs a fuel pump i don't want to take then tank off i plan on cutting a piece out of the floor pan similar to what you do on a Honda i need to no the location of where i nee… read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
93 4 runner won't crank. New fuel pump, fuel pump relay, &
93 4 runner won't crank. New fuel pump, fuel pump relay, & efi relay. Still no fuel! Engine is getting fire. … read more
Toyota Service
Toyota Service
Toyota Dealership Service & CR Manager
1,344 satisfied customers
Fuel pump not running. Found that i have power at pump. But
Fuel pump not running. Found that i have power at pump. But no ground. Ground is good to the fuel pump controller, from there donot know … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
3,901 satisfied customers
Fuel not geting to the lnjetors. New fuel pump and filter.
fuel not geting to the lnjetors JA: Has the vehicle turned into a gas hog? And how does it start -- same as usual? Customer: new fuel pump and filter JA: What is the model/year of your Toyota? Custome… read more
Gabriel Grey
Gabriel Grey
Master Service Technician
Associates
158 satisfied customers
How does the clips come off the gas tank not the fuel pump
how does the clips come off the gas tank not the fuel pump but the other 3 holes … read more
Randall
Randall
Auto Technician / Consultant
Vocational, Technical or Trade Scho
69 satisfied customers
I replaced the fuel pump and now it will start but want
I replaced the fuel pump and now it will start but want stray ru … read more
Amedee
Amedee
Toyota Technician
Vocational, Technical or Trade Scho
1,225 satisfied customers
The car will turn over but wont start....fuel pump work new
the car will turn over but wont start....fuel pump work new battery and alternator... im guess its a realy or fuse … read more
ted ritter
ted ritter
Team Leader/toyota master tech/retired
High School or GED
2,692 satisfied customers
Getting no fuel but we installed jumper on fuel Pump control
Getting no fuel but we installed jumper on fuel Pump control mod. And truck ran fine. … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
3,901 satisfied customers
Replaced fuel pump and pump is not turning on has power to
Replaced fuel pump and pump is not turning on has power to relay can hear relay click but pump does not kick on 99 4runner sr5 … read more
Eric
Eric
Auto Technician
589 satisfied customers
Fuel pump is not getting power, original, 2009 toyota
fuel pump is not getting power JA: Have you ever replaced the fuel pump, or is this the original? Customer: original JA: What is the model/year of your Toyota? Customer: 2009 toyota carola JA: Are you… read more
sprinkles08
sprinkles08
Technician
High School or GED
11 satisfied customers
The fuel pump won't turn on when I turn the engine over, New
The fuel pump won't turn on when I turn the engine over … read more
Mechanic01
Mechanic01
1,128 satisfied customers
My engine die on highway, starter is okay fuel pump is good
my engine die on highway, starter is okay fuel pump is good and there is spark on spark plug … read more
Peter Bagley
Peter Bagley
master technition
Vocational, Technical or Trade School
893 satisfied customers
2001 toyota tacoma fuel pump issues.. i think fuel pump is
2001 toyota tacoma fuel pump issues.. i think fuel pump is good just cant find a fuse or relay that is keeping it from getting power … read more
Toyota Service
Toyota Service
Toyota Dealership Service & CR Manager
1,344 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