» Site Navigation | | » Recent Threads | | | | | | | | 06-18-2011, 10:15 PM | #1 | Member Join Date: Aug 2008 Location: The SLC Posts: 34 | '95 M42 Erratic Starting Issues I've been experiencing an issue on my 1995 318ti (M42 1.8 liter) that has me baffled - it sometimes won't start. It seems to occur randomly, as I can't identify any factors that are constant when it gives me trouble. I end up needing to rev the engine over and over for 10 - 15 seconds before I can get it idling, and sometimes even that doesn't work. The frustrating part is that I'll come back to it later that day or the next day and it'll start with no issues, although the idle sometimes dips pretty low after it starts. Beside some erratic spikes in idling RPM's when I roll up to stop lights, I haven't experienced any other engine trouble. I recently replaced the spark plugs hoping that they were the cause of the issue but that didn't seem to fix anything. I've also recently replaced the air filter. The engine has 147k miles on it and it performs well when I'm not experiencing these issues. My gas mileage appears to be normal as well. I've scoured through these forums for a solution but I can't find anybody whose issues are similar to mine. What are your thoughts? | | | 06-19-2011, 01:59 AM | #2 | Senior Member Join Date: Dec 2007 Location: Gulfport, Florida Posts: 3,208 | Quote: Originally Posted by Wraythe I've been experiencing an issue on my 1995 318ti (M42 1.8 liter) that has me baffled - it sometimes won't start. It seems to occur randomly, as I can't identify any factors that are constant when it gives me trouble. I end up needing to rev the engine over and over for 10 - 15 seconds before I can get it idling, and sometimes even that doesn't work. The frustrating part is that I'll come back to it later that day or the next day and it'll start with no issues, although the idle sometimes dips pretty low after it starts. Beside some erratic spikes in idling RPM's when I roll up to stop lights, I haven't experienced any other engine trouble. I recently replaced the spark plugs hoping that they were the cause of the issue but that didn't seem to fix anything. I've also recently replaced the air filter. The engine has 147k miles on it and it performs well when I'm not experiencing these issues. My gas mileage appears to be normal as well. I've scoured through these forums for a solution but I can't find anybody whose issues are similar to mine. What are your thoughts? | Sounds like you need to clean your Idle Control Valve. | | | 06-19-2011, 06:28 PM | #3 | Junior Member Join Date: May 2011 Location: CA Posts: 23 | Yeah I would start with the ICV. Unplug it and see if you have any issues starting the car. | | | 06-20-2011, 03:37 AM | #4 | Member Join Date: Aug 2008 Location: The SLC Posts: 34 | Cool, seems straightforward enough. I'll give it a shot and report back with my results. Thanks for the quick replies, this is a fantastic community | | | 06-28-2011, 05:37 PM | #5 | Senior Member Join Date: Mar 2005 Location: NJ Posts: 1,625 | Where exactly is the ICV? I should know this... LoL __________________ SOLD!SOLD!SOLD!SOLD!SOLD!SOLD!SOLD!SOLD! Metric Mechanic's 2.0 stroker/258' intake cam/42 lb. inj./remap/HD fuel pump /DASC w.3' pulley @ 15psi/SNOW System/3.45 LSD/Billstein PSS coils /Stromung Exhaust/DS1's/X-Brace/Front & Rear H&R Sways/OMP 300mm SW /SAP delete/ASC+T delete/Hayabusa valve springs/MM's LTW flywheel | | | 06-28-2011, 06:20 PM | #6 | Senior Member Join Date: Apr 2006 Location: Oxford, Ohio Posts: 868 | On a M42 engine, its between the upper and lower intake. When you remove the upper intake, you will see it cradled in the lower intake. Its easy to take it out and clean it. On the M44 its a different design attached to the front of the upper intake. I think I have seen cleaning DIY's for both types in the knowledge base. Edit... Links added. M42 ICV Cleaning http://forums.bimmerforums.com/forum...d.php?t=454501 M44 ICV Cleaning http://www.318ti.org/forum/showthrea...+control+valve If this does not fix your problem... look into the Crank Vent Valve Last edited by dave45056; 06-28-2011 at 06:49 PM. Reason: Links added | | | 06-29-2011, 03:18 AM | #7 | Senior Member Join Date: Mar 2005 Location: NJ Posts: 1,625 | Hmmm... No intake manifold on my car. Dasc. I'll check out realoem I guess __________________ SOLD!SOLD!SOLD!SOLD!SOLD!SOLD!SOLD!SOLD! Metric Mechanic's 2.0 stroker/258' intake cam/42 lb. inj./remap/HD fuel pump /DASC w.3' pulley @ 15psi/SNOW System/3.45 LSD/Billstein PSS coils /Stromung Exhaust/DS1's/X-Brace/Front & Rear H&R Sways/OMP 300mm SW /SAP delete/ASC+T delete/Hayabusa valve springs/MM's LTW flywheel | | | 06-29-2011, 10:44 AM | #9 | Senior Member Join Date: Mar 2005 Location: NJ Posts: 1,625 | Quote: Originally Posted by mohaughn | Got it. Thanks dude! __________________ SOLD!SOLD!SOLD!SOLD!SOLD!SOLD!SOLD!SOLD! Metric Mechanic's 2.0 stroker/258' intake cam/42 lb. inj./remap/HD fuel pump /DASC w.3' pulley @ 15psi/SNOW System/3.45 LSD/Billstein PSS coils /Stromung Exhaust/DS1's/X-Brace/Front & Rear H&R Sways/OMP 300mm SW /SAP delete/ASC+T delete/Hayabusa valve springs/MM's LTW flywheel | | | | Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | | Posting Rules | You may not post new threads You may not post replies You may not post attachments You may not edit your posts HTML code is Off | | | |
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