Car hesitates and stalls on Hill when cold
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Tercel-Joe
- Newbie
- Posts: 5
- Joined: Wed May 23, 2012 1:54 pm
- My tercel:: 1986
Car hesitates and stalls on Hill when cold
I have a 1986 SR5 Wagon 160K. In the mornings after about 5 minutes of driving I have to go up a hill. If the gas tank is on a 1/4 or sometimes even when it isn't the car hesistants and bucks horribly. Push the clutch in and it runs at 4,000 rpm but it has no power to continue on. I have changed the fuel filter and cut open theold one to see if it was clogged but it was clean. I also put de-ice and then some sea foam in the gas tank thinking I might have a water issue. It seems to be worse when the car is cold and the temp is in the 40 to 50 degrees f. Timing is set to 5 btdc and carb was rebuilt about 3 years ago. Once the car is warmed up more it takes the hill fine. Any ideas?
Last edited by Tercel-Joe on Fri Jun 01, 2012 5:52 pm, edited 1 time in total.
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4wdchico
- Highest Ranking Member
- Posts: 563
- Joined: Sun Mar 30, 2008 6:51 pm
- My tercel:: 1985 tercel 4wd
- Location: Chico, Norcal
Re: 1986 SR5 Wagon
Check out the choke breaker system.Tercel-Joe wrote:I have a 1986 SR5 Wagon 160K. In the mornings after about 5 minutes of driving I have to go up a hill. If the gas tank is on a 1/4 or sometimes even when it isn't the car hesistants and bucks horribly. Push the clutch in and it runs at 4,000 rpm but it has no power to continue on. I have changed the fuel filter and cut open theold one to see if it was clogged but it was clean. I also put de-ice and then some sea foam in the gas tank thinking I might have a water issue. It seems to be worse when the car is cold and the temp is in the 40 to 50 degrees f. Timing is set to 5 btdc and carb was rebuilt about 3 years ago. Once the car is warmed up more it takes the hill fine. Any ideas?
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Petros
- Highest Ranking Member
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- Joined: Sun Jan 28, 2007 6:31 pm
- My tercel:: '84 Tercel4wd w/extensive mods
- Location: Arlington WA USA
Re: 1986 SR5 Wagon
Welcome to the list!
Get the vac line routing diagram from the Service Manual (a link at the top of this page if you do not have one), and trace all of the vac lines to verify they are routed correctly. Also check for any cracks or leaks or unplugged vac lines.
If that is all good, there are test procedures for all of the systems in the FSM, you only have to test the ones that are affected by tempurature. It sounds like it is in a cold start/run system, there are three that will affect cold running IIRC. So you only have to run three tests. And the choke breaker system as already noted.
Get the vac line routing diagram from the Service Manual (a link at the top of this page if you do not have one), and trace all of the vac lines to verify they are routed correctly. Also check for any cracks or leaks or unplugged vac lines.
If that is all good, there are test procedures for all of the systems in the FSM, you only have to test the ones that are affected by tempurature. It sounds like it is in a cold start/run system, there are three that will affect cold running IIRC. So you only have to run three tests. And the choke breaker system as already noted.
'87 Tercel 4wd SR5 (current engine swap project)
'84 Tercel 4wd (daily driver, with on going mods)
'92 Mazda MPV 4wd (wife's daily driver)
'85 Tercel 4wd DLX auto(daughter's daily driver)
'01 Honda Civic (other daughter's daily driver)
'84 Tercel 4wd (daily driver, with on going mods)
'92 Mazda MPV 4wd (wife's daily driver)
'85 Tercel 4wd DLX auto(daughter's daily driver)
'01 Honda Civic (other daughter's daily driver)
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ARCHINSTL
- Goldie Forever
- Posts: 6369
- Joined: Sat Apr 30, 2005 1:52 pm
- My tercel:: Goldie is a 1986 SR5 attualmente con Weber/also owned the first T4WD in STL in late '82
- Location: Kirkwood, a 'burb of St. Louis
Re: 1986 SR5 Wagon
Welcome to the Club!
If you have a Federal car, there is also a sticky in Repair Guides that has color-coded vac piping and underhood sticker.
Tom M.
If you have a Federal car, there is also a sticky in Repair Guides that has color-coded vac piping and underhood sticker.
Tom M.
T4WD augury?
"Oh, do not ask, 'What is it?' Let us go and make our visit."
T.S. Eliot - "The Love Song of J. Alfred Prufrock"
"Now and then we had a hope that, if we lived and were good, God would permit us to be pirates."
Mark Twain
"Oh, do not ask, 'What is it?' Let us go and make our visit."
T.S. Eliot - "The Love Song of J. Alfred Prufrock"
"Now and then we had a hope that, if we lived and were good, God would permit us to be pirates."
Mark Twain
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Tercel-Joe
- Newbie
- Posts: 5
- Joined: Wed May 23, 2012 1:54 pm
- My tercel:: 1986
Re: 1986 SR5 Wagon
I saw a post from DRB about a sticky distributor that sounds a lot like what I am experiencing I will check all of these ideas out this weekend and report back.
Thanks
Thanks
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dlb
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- My tercel:: '87 sr5, '83 dlx parts car
- Location: bc, canada
Re: Car hesitates and stalls on Hill when cold
TJ, any resolution to this?
the symptoms you experienced sound somewhat similar to the problems i was having with my last project car. the car was generally a little gutless, even worse when cold, and would bog down when i floored it, also worse when cold. i found the mechanical advance mechanism in the dizzy was really, REALLY gummed up and sticking. this meant that i wasn't able to properly set the timing in the first place since i didn't know if it was stuck in the advanced position when i set it, and then when driving it would move around and advance/retard improperly. i put a good spare dizzy i had in the car, set the timing, and it drove great. i actually had my friend bring the car by the other day so i could re-check the timing and it was still good.
as for the gummed up dizzy, i had a hell of a time disassembling it and battled to pull the signal rotor shaft off. once i finally got it, i cleaned all the old grease and sludge out and re-greased it using high temp stuff. appears to be fine now so it is my new spare dizzy.
all that aside, lots of problems can manifest with similar symptoms so you may well have to check a bunch of things. hope it's gone/going well. let us know what you found.
the symptoms you experienced sound somewhat similar to the problems i was having with my last project car. the car was generally a little gutless, even worse when cold, and would bog down when i floored it, also worse when cold. i found the mechanical advance mechanism in the dizzy was really, REALLY gummed up and sticking. this meant that i wasn't able to properly set the timing in the first place since i didn't know if it was stuck in the advanced position when i set it, and then when driving it would move around and advance/retard improperly. i put a good spare dizzy i had in the car, set the timing, and it drove great. i actually had my friend bring the car by the other day so i could re-check the timing and it was still good.
as for the gummed up dizzy, i had a hell of a time disassembling it and battled to pull the signal rotor shaft off. once i finally got it, i cleaned all the old grease and sludge out and re-greased it using high temp stuff. appears to be fine now so it is my new spare dizzy.
all that aside, lots of problems can manifest with similar symptoms so you may well have to check a bunch of things. hope it's gone/going well. let us know what you found.