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View Full Version : 88 bronco no start help UPDATE!! GOOD NEWS!!!!!!


dickrick
03-16-2005, 09:34 AM
Hey guys I bought that 88 bronco with the crunching front end. Now when I was driving it died acting like it was out of gas. Put fuel in no go. Replaced tank pump and sending unit....no go! Replaced the frame mounted pump and the fuel filter just after it and....no GO!! Then I replaced the fuel pressure regulator and still nothing. It will run if I pour gas down the throttle body. I did bypass the inertia switch and still nothing . Has anyone had a similar problem? Or have an idea of what it is cause I am at my wits end. Thanks in advance for any help[h][blah][blah]

Cookie
03-16-2005, 12:16 PM
take your windshield fluid motor and hook it staight into the fuel line.had a buddy in a older 150 do it to get home.



***hey ...im seeing double***

STranger
03-16-2005, 01:37 PM
are the fuel pumps running when you turn on the ignition?you should hear them for a few seconds.if not,check the fuel pump relay(green one).there will be a heavy pink or orange wire coming from the relay-this is the pump hot lead.run a jumper from b+ to this and listen for the pumps.if you hear them,try starting it.if it starts,its the relay that is at fault.this is very common.

i dont need people to get me,i just need people to get out of my way

brandonf250
03-16-2005, 05:17 PM
ya what tom said,my 1989 bronco always had fuel pump relay problems same as with my mustang

gordwould
03-16-2005, 08:57 PM
you also might want to try and locate the the shutdown breaker or inertia switch i think its called if its a bronco 2 or ranger it will be located under the dash on the passenger side just at the top of the carpet its black with a little white push switch on the top just try pushing it down and see if that helps.
just a little thing that gets over looked once and a while even from ford as a buddy found out with a 500.00 bill and only to find out it was a little switch under the dash that was tripped from something hitting it when he braked a little hard[cheers]

http://www.funinbc.com/forum/uploaded/cracmasterg/2004113015120_Rollup.jpg

STranger
03-17-2005, 03:18 AM
read his post again-he did that.

i dont need people to get me,i just need people to get out of my way

dickrick
03-17-2005, 05:01 AM
Well the washer pump sounds like a good fix for in the bush or to get home I am looking for a more permanent fix but thanks. And yes I did try the inertia switch and when that didn't work we by passed it. As for the relay problem I can hear both pumps fine and when I open the bleeder the fuel sprays every where.So I am thinking that it may be a pressure issue I was told that if it doesn't have at least 30psi it won't work. so I guess I will have to get a tester on there to see if that is the problem. Thanks all for the reply tho.[cheers][cheers][cheers][cheers]

STranger
03-17-2005, 05:09 AM
if the fuel is spraying from the bleeder you have enough pressure for it to start,it just wont run too well.you have ignition so the computer is getting power.so the problem is that the injectors aren't fireing....i would suspect that the computer fried.

i dont need people to get me,i just need people to get out of my way

dickrick
03-17-2005, 08:51 AM
S[j]ounds logical but I hope you are wrong. I will look into it.

gordwould
03-17-2005, 02:55 PM
trooble shooting via mitchels 2000 auto repair

cold start valve inoperative -- test valve and circuit

poor connection/vacuum or wiring -- check vacuum and electrical connections

contaminated fuel -- test fuel for water or alcohol

defective fuel pump relay or circuit -- test relay and wiring

battery too low -- charge and test battery

low fuel pressure -- test pressure regulator and fuel pump,check for restricted lines and filters

no distributor reference pulses -- repair ignition system as necessary

open coolant temperature sensor cicuit -- test sensor and wiring

shorted W.O.T switch in T.P.S -- disconnect W.O.T switch, engine should start

defective ECM -- replace ECM

fuel tank residual pressure valve leaks -- test for fuel pressure drop after shut down

your fuel pressure should be between 30 - 45 psi

you might want to try reseting computer/ecm
injectors dont fire they spray

http://www.funinbc.com/forum/uploaded/cracmasterg/2004113015120_Rollup.jpg

dickrick
03-17-2005, 05:55 PM
Ok I have eliminated a few of those problems. But what is W.O.T is it wide open throttle? I know that tps is throttle positioning sensor. What is W.O.T? please and thank you[h][h][cheers]

gordwould
03-17-2005, 07:40 PM
yes w.o.t = wide open throttle
can you feel or hear the injectors clicking when turning over the motor?

http://www.funinbc.com/forum/uploaded/cracmasterg/2004113015120_Rollup.jpg

STranger
03-18-2005, 05:16 AM
quote:Originally posted by gordwould

trooble shooting via mitchels 2000 auto repair

cold start valve inoperative -- test valve and circuit...doesn't exist on this vehicle

poor connection/vacuum or wiring -- check vacuum and electrical connections.....duh

contaminated fuel -- test fuel for water or alcohol...check post-new fuel

defective fuel pump relay or circuit -- test relay and wiring....check post-pump running

battery too low -- charge and test battery....it's cranking,it should start

low fuel pressure -- test pressure regulator and fuel pump,check for restricted lines and filters.....it's spraying from the test port,should start even if pressure low

no distributor reference pulses -- repair ignition system as necessary....he has ignition-read the post

open coolant temperature sensor cicuit -- test sensor and wiring....wont stop it from starting

shorted W.O.T switch in T.P.S -- disconnect W.O.T switch, engine should start....maybe on a honda,wont stop a ford from starting

defective ECM -- replace ECM....thats what i figured-read post

fuel tank residual pressure valve leaks -- test for fuel pressure drop after shut down-wont prevent it from starting

your fuel pressure should be between 30 - 45 psi.....39psi asolute(difference between pressure in fuel rail and inside manifold).even if low it should start,just may run crappy

you might want to try reseting computer/ecm
injectors dont fire they spray...."fire" is a generic term for the energising of the electric solonoid valve to raise the pintle off the seat,allowing pressurised fuel to spray from the tip,should it be present.also,resetting the computer will not help if the injectors are not firing at all.

http://www.funinbc.com/forum/uploaded/cracmasterg/2004113015120_Rollup.jpg


i dont need people to get me,i just need people to get out of my way

dickrick
03-18-2005, 06:18 AM
Come to think of it no I didn't but will check again. thanks

gordwould
03-18-2005, 07:03 AM
well there tom if all were as smart as you they wouldnt ask questions now would they and as for trying to dis a post that is the trouble shooting guide for not starting from mitcheles on demand for that i posted to try and offer a little help so yes i said injectors dont fire but it was just to clarafy that for other ppl and there is no reason to try and beelittle other ppls posts that are just offering the information they have at there disposal !!!!!!

http://www.funinbc.com/forum/uploaded/cracmasterg/2004113015120_Rollup.jpg

gordwould
03-18-2005, 07:28 AM
aloso low fuel pressure will stop a motor from starting being fuel injected and the distributor could be creating spark but not sending signal to the injectors so i would check for signal with either a good volt meter or injector tester (noid light) and also if there is to much pressure the injectors could not be able to function[cheers]

dickrick
03-18-2005, 07:36 AM
Cool I should probably have one of those tools anyway. Thanks again to all![cheers][cheers][cheers][cheers][cheers][cheers][cheers]

Hyenuf
03-18-2005, 08:41 AM
Does this thing run yet??????

Just checkin' in

Gord and STranger...... play nice[f][f][f]

[h]TOM

--------------------------------------------------------------------------------------------------
If it ain't broke, don't fix it.
If it's TTB.... trust me, it's broke!
--------------------------------------------------------------------------------------------------
WHAT WE HAVE HERE IS A FAILURE TO ARTICULATE



PHANSIE----->http://dungpow.com/smilies/010.gif<----- HYENUF Yes Dear!!

http://www.members.shaw.ca/Hyenuf/bronc3.jpg

dickrick
03-18-2005, 09:46 AM
not yet but my buddy just dropped off a new computer for me that he had kicking around so hopefully it works should know by the weekend.
Thanks for asking[cheers][cheers][cheers][cheers]

phatmatt
03-18-2005, 10:11 AM
a 2.9 has a distributor?

78bronco
03-18-2005, 10:24 PM
first to do when bronco wont start get rag,then put in gastank filler then light match!! oh ya and run like hell

HELL HATH NO FURY LIKE A BIGBLOCK

dickrick
03-19-2005, 05:26 AM
5.0 L

Hyenuf
03-19-2005, 09:19 AM
quote:Originally posted by 78bronco

first to do when bronco wont start get rag,then put in gastank filler then light match!! oh ya and run like hell

HELL HATH NO FURY LIKE A BIGBLOCK

http://www.planetsmilies.com/smilies/sign/2/sign31.gif


--------------------------------------------------------------------------------------------------
If it ain't broke, don't fix it.
If it's TTB.... trust me, it's broke!
--------------------------------------------------------------------------------------------------
WHAT WE HAVE HERE IS A FAILURE TO ARTICULATE



PHANSIE----->http://dungpow.com/smilies/010.gif<----- HYENUF Yes Dear!!

http://www.members.shaw.ca/Hyenuf/bronc3.jpg

78bronco
03-19-2005, 11:03 AM
Im not lying about that its so tempting sometimes to do it especially when you drop a valve and blow out the carb gaskits when it backfires

HELL HATH NO FURY LIKE A BIGBLOCK

Hyenuf
03-19-2005, 01:46 PM
That ain't no FORD only disease man... lemme tell ya....

That Bronco start yet???:D

--------------------------------------------------------------------------------------------------
If it ain't broke, don't fix it.
If it's TTB.... trust me, it's broke!
--------------------------------------------------------------------------------------------------
WHAT WE HAVE HERE IS A FAILURE TO ARTICULATE



PHANSIE----->http://dungpow.com/smilies/010.gif<----- HYENUF Yes Dear!!

http://www.members.shaw.ca/Hyenuf/bronc3.jpg

Toyquad
03-19-2005, 03:15 PM
ign. control mod?? on the dist?? CEL on??

dickrick
03-23-2005, 06:44 AM
Sorry guy's no it didn't start yet Found out my buddies ecc was for a bronco with a 5.8L so it didn't work. Just replaced the relay's that didn't work either. Will try a few more things before replacing the ecc. At least now I know that the injectors are not getting power but supposedly there are a few fuseable links in the circit. Shit this will be a new truck by the time I'm done!!![16][2]

dickrick
03-28-2005, 10:36 AM
AAUUUUUUGGGGGGGHHHHHHHHHH!!! I have replaced the pump relay the ecc relay the coolant temp sensor the air temp sensor both fuel pumps the fuel filter and it still won't start !!!!!!!![14][smack][drama][j][2][27] Am I missing something simple? I need this truck to run HELP PLEASE![drama]

Hyenuf
03-28-2005, 08:29 PM
Um... is there any gas in the tamk????:D


Not trying to be an asshole but it happened to me once......Fucking thing just died... dicked around for two days.....Had half the shit off my engine.... Out of gas!!!! Just about hanged myself. Course all you could do was laugh.... hope you just did!!





If it ain't broke, don't fix it.
If it's TTB.... trust me, it's broke!

Lord, grant me the patience to swap in my 460!!

dickrick
03-28-2005, 08:34 PM
ya lots of gas[31][31]

gordwould
03-29-2005, 01:26 PM
you have checked distibutor module?


http://www.funinbc.com/forum/uploaded/cracmasterg/2004113015120_Rollup.jpg

dickrick
03-29-2005, 03:27 PM
no does that control the injectors? cause they ain't gettin power. how do you check it?[?]

gordwould
03-29-2005, 06:39 PM
it says in mitchells that the distributor can effect injector pulse if the module is defective [cheers]

http://www.funinbc.com/forum/uploaded/cracmasterg/2004113015120_Rollup.jpg

dickrick
03-30-2005, 04:14 AM
Ok cool does anyone know how to test it? or is it just another replace and cross my fingers?[k]

Hyenuf
03-30-2005, 10:47 AM
Hope that worked for ya... it's kinda sad having two dead broncos on the same site.........The chevy and zuki guys are used to it.... but not us right??[f]


If it ain't broke, don't fix it.
If it's TTB.... trust me, it's broke!

Lord, grant me the patience to swap in my 460!!

dickrick
03-30-2005, 11:59 AM
Myself I am a fan of whatever I am driving. Hey gordwould which module would it be? the one on the distributor or the fender? and I think I found out how to test it in my awsome [!]Haynes manual!

gordwould
03-30-2005, 03:48 PM
on the distributor

http://www.funinbc.com/forum/uploaded/cracmasterg/2004113015120_Rollup.jpg

Hyenuf
04-03-2005, 07:07 PM
Um.. I hate to ba a nag.... Didja get er going????

I hope so:D


If it ain't broke, don't fix it.
If it's TTB.... trust me, it's broke!

PARDON ME IF I OFFEND THOSE OF YOU WITHTHIN SKIN THAT SEEM TO LIKE TO DISH IT OUT! CRY ME A RIVER!!!

dickrick
04-03-2005, 07:11 PM
Nope I am trying the ignition mod but I have to pull the distributor so I will find out soon. I had to make a tool t take it off. I needed a 7/32 deep 1/4 inch drive and I couldn't find one so I made one![g]

Hyenuf
04-03-2005, 07:18 PM
Man O man... There is no end to this... I feel for ya man.

It must be SOOOO Agravating.

Good luck!


If it ain't broke, don't fix it.
If it's TTB.... trust me, it's broke!

PARDON ME IF I OFFEND THOSE OF YOU WITH THIN SKIN THAT SEEM TO LIKE TO DISH IT OUT! CRY ME A RIVER!!!

dickrick
04-04-2005, 01:16 PM
thanks. anyway update I am trying an ignition module tonight found one for $25 so I hope this works!!! cause I am getting tired of this[11][11][31][31][31][31][31][31][31]

dickrick
04-04-2005, 06:36 PM
God damned POS I wish I had a Scout again this thing is driving me nutts!!![27][27][27][27][27][27][27][27][27][27][27][27][27][27][27][27][27][27][27][27][27][27][27][27][27][27][27][27][27][27][27][27][27]I just changed the ignition mod and still nothing!!!!!!!thats it I'm just gonna[31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31][31]

pumpkin
04-04-2005, 07:05 PM
If you have no power to the injectors then you have a blown fuse or fusable link or an open circuit to the injectors and voltage supply.The injectors are powered and the computer controles the ground side of the injecters.If you need more info I can get you a wiring diagram,I find it very usefule to diagnose these types of problems.

Hyenuf
04-04-2005, 07:54 PM
O man.....I'm looking for my book as we speak.... I'm over here pounding my head against the wall for ya.


[27]


If it ain't broke, don't fix it.
If it's TTB.... trust me, it's broke!

http://dungpow.com/smilies/rambo3.gifI AM THE BOARD NAZI!!!..... THERE WILL BE NO HUMOUR HERE!!

dickrick
04-05-2005, 05:01 AM
yes if some one could send me a copy of the wiring diag that would be great! I am just at my witts end with this my buddy thinks I am over looking something simple but I have been over everything a hundred times![f]

dickrick
04-05-2005, 11:09 AM
never mind I found one at work. Just a tip for everybody I have now 3 different Haynes manuals and they are all different![27] Man is that annoying! Hopefully I can figure this out soon. [31]

mike
04-06-2005, 11:21 AM
from past posts on this topic i'm not quite clear on wether or not u tried the 5.8 computer. my bronco has been down awhile now replaced all kinds of shit and nothin. think it was only runnin on one bank of injectors. anyways i threw a 5.8 ecu in my bronco today and fired up great. engine is a 302 5sp.

dickrick
04-06-2005, 03:14 PM
that was one of the first things I tried

dickrick
04-11-2005, 06:03 PM
[L][L][L]Well I finally got it going tonight!!![38][38][1c][1c][1c][1c]After replacing almost every sensor and switch and almost ready to tow it to the road with a rag in the gas tank [27][27][27][27][27] . I tried a few more things tonight like bypassing the fuseable links, changing the cap and rotor and all the fuses. to no avail the truck still wouldn't start![fire]Bronco. So I just went over the engine again starting with the battery then I saw these two wires thisted together down beside the battery that had been there the whole time but they didn't look like they went anywhere so just for kicks I put them on the neg terminal and tried to start it one more time and goddamnit it started right away wooo hooooo[1c][1c][1c][1c][chugging][chugging][chugging] It just pisses me off that it was something that simple[1d][2e][1b][freak][omg] But hey at least I know that I will not have any more problems with any of the shit I replaced! Coulda saved a couple of hun tho! So I would like to thank every one for all the advice I recieved and the offers to let me call and pic their brains.

Can't think of signature need BEER to sharpen witty banter!

Hyenuf
04-11-2005, 06:59 PM
YAY!!!!!
http://dungpow.com/smilies/baddancing.gifhttp://dungpow.com/smilies/specialED.gifhttp://dungpow.com/smilies/kickass.pnghttp://dungpow.com/smilies/105.gif


Now go get iot dirty!!!!!

Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

- Albert Einstein (1879-1955)

dickrick
04-12-2005, 03:30 AM
No unfortunatly while it was at work someone stole my rear plate so I can't drive it yet! But the cops did find it and I just have to leave a statement and they will prob give it back.
[fire]Thieves[1a]

Drink enough beer, and you'll never go to bed with an ugly woman. (You might wake up with a few...)

dickrick
04-12-2005, 03:33 AM
Oh ya I also have to fix the front end and brakes and shocks. But at least I know what the problems are!![36][cheers]

Drink enough beer, and you'll never go to bed with an ugly woman. (You might wake up with a few...)

gordwould
04-12-2005, 09:25 PM
good good good to hear it finaly runs again

http://www.funinbc.com/forum/uploaded/cracmasterg/2004113015120_Rollup.jpg

dickrick
04-13-2005, 04:04 AM
Thanks but look for my post about ICBC and the RCMP [27]comming soon

Drink enough beer, and you'll never go to bed with an ugly woman. (You might wake up with a few...)

Rebulon Refurbulater
04-24-2005, 06:33 PM
i havent read all of your posts....but you might want to try those two little wires laying down by the battery tray........sometimes that'll do it........:)
r u shure your buddy wasnt pulling your chain ?.......must be sumthin simple!
................Seriously good thought process and lots of good info here!

Wheelin', Workin',........oh yeah....Sex!