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Hard starter #1063399 08/28/13 11:59 AM
Joined: Oct 2005
Posts: 30
H
huey Offline OP
Getting the Wheeling Fever
Hi Lads, On my 86 toy 80,000 Mi, if it sits more than a day it takes several attempts to get er started. Now I had a 91 that did a the same thing when the fuel line sprung a leak but this one in pristene underneath and there are no obvious leaks. Any suggestions? . Any and all help greatly appreciated

From the Off-Road World
Re: Hard starter [Re: huey] #1063400 08/28/13 11:21 PM
Joined: Jan 2003
Posts: 1,355
Elbow_Greese Offline
Body Damage is Cool
Is this a carb or EFI model?
That will help in narrowing down the culprit.


1986 Pickup extracab longbed "Woody edition"
SAS - 33's, 5.29's, lockright rear.

02 IS300 SportCross - my "DD"
94 2wd v6 extracab
04 Outback Wagon- wife's/family car
Re: Hard starter [Re: Elbow_Greese] #1063401 08/29/13 01:04 AM
Joined: Oct 2005
Posts: 30
H
huey Offline OP
Getting the Wheeling Fever
Sorry for the lack of info. I guess this was around the time they changed over and I should have known better. Anyway its its EFI and as I said it just cranks and cranks for several tries just as my 91 did with the leaking rusted line but there is absolutely no rust here at all.

Re: Hard starter [Re: huey] #1063402 08/29/13 10:58 PM
Joined: Jan 2003
Posts: 1,355
Elbow_Greese Offline
Body Damage is Cool
Actually, they had the option of both EFI and carb up until '92 (I think) in the 2wd's, but no matter.
When it sits for that day plus, if you turn the ignition to "ON", but not to "Start", do you hear the fuel pump working?
Not sure if you'll be able to hear it in a truck.
Sounds like it might be a fuel pressure issue.
Is it better or worse with a full tank?

BTW - where did you find an '86 with no rust? I have rust repair to do on mine. <img src="/forums/images/graemlins/shiner.gif" alt="" />

Todd


1986 Pickup extracab longbed "Woody edition"
SAS - 33's, 5.29's, lockright rear.

02 IS300 SportCross - my "DD"
94 2wd v6 extracab
04 Outback Wagon- wife's/family car
Re: Hard starter [Re: Elbow_Greese] #1063403 08/30/13 12:53 AM
Joined: Apr 2000
Posts: 3,748
Dandeman Offline
Toyota Moderator
Quote

Sounds like it might be a fuel pressure issue.
Todd


Ditto... Good idea to check the fuel pump pressure...

One of my Toyotas first got hard starting and ultimately fuel pump failure.

Fortunately fuel pump failed just as I was leaving the house.. will strand you big time....

Re: Hard starter [Re: huey] #1063404 08/30/13 01:43 AM
Joined: Oct 2002
Posts: 15,887
kewlynx Offline
Toyota & Classifieds Moderator
*****
x 3.

To add, pull your dipstick and give it a whiff to see if it smells like fuel. If so, you might have an injector or two leaking.

Your other factor in the mix is the cold start injector, but do stick with ruling out the fuel system first.


http://www.walkablecommunities.org/

Democracy is two wolves and a lamb voting on what to have for dinner. Liberty is a well-armed lamb contesting the vote.

**ubi apis- ibi salus**
Re: Hard starter [Re: Dandeman] #1063405 08/30/13 04:00 AM
Joined: Oct 2005
Posts: 30
H
huey Offline OP
Getting the Wheeling Fever
Actually, I was fearing the fuel pump was the culprit. What a hassle it will be. However I will beg bowwor or steal the proper meter to check the pressure. It currently has 1/2 tank. It idles and drives perfectly . As for the no rust question I bought this unit in upper VT on the NH border and I believe it spent most of its life in Arizona and thus the perfect frame which I am about spray with penetrating oil and drive down a good dry dirt road. Oh by the way, I seem to remember reading that an external elect pump can be added if the orig one fails as it will draw through the original one . Any one ever hear of this?

Re: Hard starter [Re: huey] #1063406 09/02/13 04:30 AM
Joined: Jan 2000
Posts: 12,153
4Crawler Offline
Web Wheeler
*****
Quote
Actually, I was fearing the fuel pump was the culprit. What a hassle it will be. However I will beg bowwor or steal the proper meter to check the pressure. It currently has 1/2 tank. It idles and drives perfectly . As for the no rust question I bought this unit in upper VT on the NH border and I believe it spent most of its life in Arizona and thus the perfect frame which I am about spray with penetrating oil and drive down a good dry dirt road. Oh by the way, I seem to remember reading that an external elect pump can be added if the orig one fails as it will draw through the original one . Any one ever hear of this?


Try the fuel pump test jumper:
- http://www.4crawler.com/4x4/CheapTricks/index.shtml#FuelPump

Should be able to hear the pump running and you can try either pinching off the return line or apply some vacuum to the pressure regulator to listen for a change in sound of the returning fuel from the regulator. It'll sound like a leak in a tire, sort of a hissing sound.

Re: Hard starter [Re: 4Crawler] #1063407 09/10/13 02:15 PM
Joined: Oct 2005
Posts: 30
H
huey Offline OP
Getting the Wheeling Fever
As usual, when I finally get the time to dig into my problem, its raining out so its on hold for a day or two. However I did the puel pump jumper trick without any change. I checked the resistance between the start injector time switch and they are right on. However the readings from the water temp sensor are just the opp of what the scale in my book shows. Cold engine reads 3.4 ohms and as the temp rises the readings go lower. Warm engine shows .5 ohms. What does the temp sensor control? Also when the engine is stone cold a very small spritz of starting fluid brings it to life instantly which kind of makes me think the cold start injector isn't working.I mean if the fuel pump isn,t working then it wouldn't run at all. Lots more to check but thats where I stand right now (rained out for today) .

Re: Hard starter [Re: huey] #1063408 09/11/13 07:01 AM
Joined: Oct 2002
Posts: 15,887
kewlynx Offline
Toyota & Classifieds Moderator
*****
Go to the tech articles (left sidebar) at www.autoshop101.com and give the article EFI#3 a good read; it'll tell you what the temp sensor as well as the cold start injector do. Don't leave out the latter to check also. It's also in this article.

It's rather lengthy, but worth the read if it's still raining on you. Good to see you're not just throwing parts at it for the time being.


http://www.walkablecommunities.org/

Democracy is two wolves and a lamb voting on what to have for dinner. Liberty is a well-armed lamb contesting the vote.

**ubi apis- ibi salus**

Moderated by  4Crawler, 4x4Wire, kewlynx 







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