1991 starting issues once warm????

[JasonC]

Well i've been driving my Festy since i've rebuilt it about 600-700miles ago. Its a 1991 1.3 5speed bone stock. Anyway there has been a miss in it once or twice a day it would stumble for a sec then would go away and drive just fine. So today i took it to town and it failed to start up on me once i left a store. So i sat there awhile waiting to be picked up and i desided to start it once more. Well it fired off and i drove it home.

Once home i changed the ICM. Well that made no difference, it would just crank. I also replaced the fuel pump. It fired off and ran and drove just fine. Till i noticed that the temp gauge was climbing. The fan was not turning on. So i pulled it in the garage to see why the fan wouldn't come on. I went to fire it off and it did the same thing as before, it would just crank over.

Now if i let the car sit and cool off, it will fire off and run just fine till it starts to get warm then it will idle high then low and dont want to rev up. And when i try to start it once it is warm, it will not even fire unless i have the gas all the way to the floor. Then it will fire and shut off.

I know this is long, but i tried to explain it the best i could.

[MONSOON]

Possibly coil? Also check your grounds and make sure theyre good.

[JasonC]

Well i got another coil and dist off of a known running car. And it seems to run fine now. I let it warm up and it stayed running like it should, and shut it off, and it fired right back up.

I'll update this thread in a few days if its still going or pulling the same crap.

[sanjeet]

My guess is the ignition module inside the distributor, damn electronics and mine did the same and would not start when hot, started straight away when cold.

We have AA and I had to call him when I got stuck in town, he told me a car had been towed to a garage three times before they got the fault (each time it was towed the motor cooled and it fired up straight away).

Good place to start on the New Zealand models 1992, I got a dizzy from a junker (wrecker) and no problems for the past 12 months

[pimpinphil]

LOL,
" ITS A FORD,YOUR BOUND TO HAVE ISSUE'S"


but anyways i was thinking,bout what we said bout the computer, i wonder if that makes more sense with all the issues you are having, like the fan not turning on,and surging.just might need to change that out, and see what happens,or you could jsut sell me your center console. ttyl

just a thought,but I have one "IN STOCK" LOL you know what i mean.

[JasonC]

The fan is coming on now and i'm not to for sure what the hell is going on now. It ran perfect for one day. Now, once warmed up it will not start unless i have the gas to the floor and let it sit there and clear itself out like its flooded! But yet there isn't any black smoke poring out the back like if it was flooded. And if it cools off, it will start right up and drive off... But going down the road it will get a miss in it for a sec then just go away. I'm wondering if the TPS isn't wacked out.

[JasonC]

Hey Phil, i'll be over tomorrow to get the comp out of that other festy for this pos...

[TominMO]

Well i've been driving my Festy since i've rebuilt it about 600-700miles ago. Its a 1991 1.3 5speed bone stock. Anyway there has been a miss in it once or twice a day it would stumble for a sec then would go away and drive just fine. So today i took it to town and it failed to start up on me once i left a store. So i sat there awhile waiting to be picked up and i desided to start it once more. Well it fired off and i drove it home.

Once home i changed the ICM. Well that made no difference, it would just crank. I also replaced the fuel pump. It fired off and ran and drove just fine. Till i noticed that the temp gauge was climbing. The fan was not turning on. So i pulled it in the garage to see why the fan wouldn't come on. I went to fire it off and it did the same thing as before, it would just crank over.

Now if i let the car sit and cool off, it will fire off and run just fine till it starts to get warm then it will idle high then low and dont want to rev up. And when i try to start it once it is warm, it will not even fire unless i have the gas all the way to the floor. Then it will fire and shut off.

I know this is long, but i tried to explain it the best i could.

The not starting when the motor is warm sounds like vapor lock to me. I have this problem on Casper; and like you, once it cools off after 5-10 minutes it starts fine. Or if I don't want to wait, I have to floor the gas pedal.

[JasonC]

Now that i'm calmed down somewhat....It's got much worse since i last posted earlier. Now it will hardly even start once warm with the gas pressed to the floor, i have to feather the throttle and try to keep it running and once going i have to rev it to clear it out and it will idle ruff and rev up ruff also. But if i unplug the engine coolant temp senser on the intake, the idle will smooth out and it revs up like it should. I wonder if that senser isn't causeing all of my proplems?

Also, once i start it when it's cold now, and the car starts to warm up. The car is somewhat sluggish driving it and has a ruff idle and goes through the rpms kind of sluggish too. But when sitting there at idle, i can unplug the temp senser on the intake and the idle will clear up and revs up like a fresh engine should.

[eurotiva]

^ do you have a timing light? Might have jumped a tooth on the timing belt. I'd look around....maybe a loose dizzy? And when you hold it on the floor before starting "most" efi cars will cut the fuel pump. This allows only air so it would mean a flooding problem. You might want to try cleaning injectors. My .02$

[JasonC]

Checked it and it was out 1 tooth. I alined all of the timing marks back up. And the dist. is tight. Although once warmed up it would run like crap. Untill i unplugged that temp senser. And i'm not to for sure about dirty injectors, wouldn't that cause problems all of the time? Or if they was leaking off, it would be much worse once it sat there for a time unlike now when i try to start it up back in a 10-15min time frame?

[sanjeet]

sorry jason I was talking 1992 Carbed Festy, but the timing may be a good starting point but the jumping timing belt can be a real pain to diagnose, I had a timing belt that would jump after about 20 Kilometeres at night and reset itself in the morning, so it can be a real bugger and maybe look for the simple solutions first (good point though Erotiva

http://www.youtube.com/watch?v=tdMCAV6Yd0Y&NR=1

[JasonC]

I got home and replaced the temp senser on the intake. It starts up once warm and runs fine. I hope i dont jinx it by typing this lol. I'll report back if anything goes downhill.

[hot4dl8ly]

I had one of those temp sensors set a dtc, cause the eng to hiccup and flash the cel during warmup, replaced and no problems since. I would guess it could cause all of the sympyoms you described, we will keep our fingers crossed.