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90 auto festiva stalls every morning 2 or three times and will drive sluggish for first couple of minutes and then after it warms up it idles fine and doesn't stall. I have replaced coolant temp sensor and unplugged the iac while running and idle changes as I connect and disconnect so that appears to be working fine. Only after the car sits for a couple hours is when I have the issue. Fuel pump and gas tank were replaced by previous owner not sure about filter. Other than that issue car drives fine once warm
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First thing I'm thinking of is the IAC (idle air control) may be bad.90 Festy (Larry)--B6M (Matt D. modified B6 head), header, 5-speed, Capri XR2 front brakes, many other little mods
09 Kia Rondo--a Festy on steroids!
You can avoid reality, but you can't avoid the consequences of avoiding reality--Ayn Rand
Disaster preparedness
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Iac appears to be working fine significant idle change while unplugging and plugging back in. I removed the intake to discover a significant amount of oil gatherd in the accordian section. I am thinking that is affecting the maf sensor causing the issue but I'm not sure I'm kind of stumped I removed the iac and cleaned it out today so I guess I'll see what happens tommorow morningComment
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Have you checked engine compression? Excessive blow-by caused by ring wear can cause low compression, rough idle and oil in your intake tube. You don't a MAF sensor as more modern cars have. A Festiva uses a vane air flow meter that measures air by the opening and closing of the vane.
Sent from my iPhone using Tapatalk"Fred" 93 Festiva L B6-ME Swap
“Though he is small, he is but fierce.”Comment
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Did not check compression yet morning start was the same as usualComment
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low compression in cylinder 4 turns out that was the issue all along...... now what to do with this thingComment
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Rebuild! Upgrade! Both!Trees aren't kind to me...
currently: 2 88Ls (Scrappy and Jersey), 88LX, 90L(Pepe), 91L, 91GL (Skippy) 93 GL Sport (the Mighty Favakk), 94 (Bruce) & 95 Aspire SEs, 97 Aspire (The Joker),
94 Justy 4WD, 87 Fiero GT, plus 2 parts cars. That's my fleet.
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Do you know whether it's the valves in #4 or the rings? If you're mechanically inclined, you can save $$ by pulling the head yourself and taking it to a shop to have the valves done, if that is the issue.Originally posted by Swilliams View Post
If rings, then your only option is to install a turboed BP......90 Festy (Larry)--B6M (Matt D. modified B6 head), header, 5-speed, Capri XR2 front brakes, many other little mods
09 Kia Rondo--a Festy on steroids!
You can avoid reality, but you can't avoid the consequences of avoiding reality--Ayn Rand
Disaster preparedness
Tragedy and Hope.....Infowars.com.....The Drudge Report.....Founding Fathers.info
Think for yourself.....question all authority.....re-evaluate everything you think you know. Red-pill yourself!
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what sort of mileage??Comment
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carbon buildup on valve will cause leak and might be cured with chemical cleaning. worked for me. I could see carbon on the underside of the valve cover indicating leaking exhaust valve. used a chemical cleaner before changing oil. cheap cure.Last edited by WmWatt; 05-18-2016, 08:46 PM.Original owner of silver grey carburetted 1989 Festiva. 105k km as of June 2006. 140k km as of June 2021.Comment
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Yep - if it's rings - the only fix is a turboed BP .Comment
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Why not rering? I did mine last spring and it helped with my compression. My cylinders are pretty scored and messed up but should get a few more years outta her.Originally posted by blowby View PostComment
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Looking like rings .... I put some oil down the cylinder and re checked that cylinder and compression immediately went up .... Car has 48,000 on itComment
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Pull the head, the pan and pull the cylinders. Due to the age and mileage, they're likely just stuck. That's all I had to do with Skippy, aside from a burnt valve, but that was a different issue.Trees aren't kind to me...
currently: 2 88Ls (Scrappy and Jersey), 88LX, 90L(Pepe), 91L, 91GL (Skippy) 93 GL Sport (the Mighty Favakk), 94 (Bruce) & 95 Aspire SEs, 97 Aspire (The Joker),
94 Justy 4WD, 87 Fiero GT, plus 2 parts cars. That's my fleet.
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Sounds like it may have sat for a long time if the mileage is truly that low on that motor; although I'm not sure how that would cause this problem either. Otherwise no way would the compression and oil-control rings be worn out. Maybe broken rings?Originally posted by Swilliams View PostLast edited by TominMO; 05-19-2016, 08:25 AM.90 Festy (Larry)--B6M (Matt D. modified B6 head), header, 5-speed, Capri XR2 front brakes, many other little mods
09 Kia Rondo--a Festy on steroids!
You can avoid reality, but you can't avoid the consequences of avoiding reality--Ayn Rand
Disaster preparedness
Tragedy and Hope.....Infowars.com.....The Drudge Report.....Founding Fathers.info
Think for yourself.....question all authority.....re-evaluate everything you think you know. Red-pill yourself!
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