944Hybrids: 924/944/968 and 928 V8 Conversions
Would you like to react to this message? Create an account in a few clicks or log in to continue.
HOW TO DO AN ADVANCED SEARCH.

Mon Jul 08, 2013 3:56 pm by Admin


For the benefit of 944Hybrids users there are two search functions available for you to use.
The purpose of this sticky is to explain the "Advanced Search" function because it is much more powerful and is the best choice when researching information.

When you log on to the site a list of options is shown in a line at the top of the page. One option is labelled "Search", use this option (NOT the search box lower down on the right).

After you click on the upper search option, a drop down box appears. At the bottom of this box is a radio button marked "Advanced …

Comments: 0

Latest topics
» wtb: 16" early offset wheels
Engine fails when getting warm under load or idling EmptyToday at 1:17 am by sharkey

» WTB 951 or S2 Trans
Engine fails when getting warm under load or idling EmptyFri Jun 11, 2021 4:13 pm by Rikstone

» LS Overheating Issue
Engine fails when getting warm under load or idling EmptyThu Jun 10, 2021 11:24 pm by zeusrotty

» Drive shaft too short to reach pilot bearning
Engine fails when getting warm under load or idling EmptyWed Jun 09, 2021 3:00 am by spence

» ECU Wiring
Engine fails when getting warm under load or idling EmptyFri Jun 04, 2021 12:56 pm by Hotrodz of Dallas

» TPC Throttle Cable Questions
Engine fails when getting warm under load or idling EmptyFri Jun 04, 2021 12:54 pm by CyCloNe!

» 944 LT1 engine mounts and dash lights
Engine fails when getting warm under load or idling EmptyFri Jun 04, 2021 8:47 am by quarterflash

» Modified Hooker 2312 Headers for sale
Engine fails when getting warm under load or idling EmptyFri Jun 04, 2021 7:29 am by gwistrup

» Ray's 1987 944 LS1 Build & Swap
Engine fails when getting warm under load or idling EmptyThu Jun 03, 2021 9:50 pm by Raymond-P

» lm7 944 swap in the uk
Engine fails when getting warm under load or idling EmptyThu Jun 03, 2021 3:18 pm by mistert1996

June 2021
MonTueWedThuFriSatSun
 123456
78910111213
14151617181920
21222324252627
282930    

Calendar Calendar

Log in

I forgot my password

Engine fails when getting warm under load or idling

Go down

Engine fails when getting warm under load or idling Empty Engine fails when getting warm under load or idling

Post  quarterflash Mon Nov 23, 2015 3:59 am

Hi everyone
We had our first frost of the year here in the UK last night. Brrr.

Maybe you can suggest a solution to our problem.
Engine: 95 Corvette LT1 350.
Car: 89 944 Turbo, well it was.
Problem: engines takes a while to start but then fires up and runs fine. However after driving for a short while or even idling it splutters to a halt. Leaving it to cool down allows us to start it again no problem.
I don't want to put ideas in your head but does that sound like a coil issue?
All cylinder compressions are good (175 - 200) and it is not restricted to a cylinder or even a bank of 4. The whole engine is affected so it has to be coil, distributor or fuel?

All ideas welcome.
Thanks
Q

quarterflash

Posts : 74
Join date : 2010-08-04
Location : Stratford-Upon-Avon, UK

http://porschevy.co.uk/

Back to top Go down

Engine fails when getting warm under load or idling Empty Re: Engine fails when getting warm under load or idling

Post  spence Mon Nov 23, 2015 5:07 am

Sounds like an optispark or ICM issue.... Read this

[You must be registered and logged in to see this link.]

spence
spence

Posts : 652
Join date : 2009-07-21
Age : 38
Location : St.Catharines, Ontario, Canada

Back to top Go down

Engine fails when getting warm under load or idling Empty Re: Engine fails when getting warm under load or idling

Post  kelleysj Thu Dec 10, 2015 8:37 am

I had this issue with my ICM. I spaced the heatsink with washers since I believed it was overheating due to being mounted to the driver side head. I also removed the ICM from the heat sink cleaned all the old paste off and added Artic silver5 heat sink paste to the sink and ICM remounted it. Since I have done this I have not had one problem with the car dying. This is a cheaper fix to try first before messing with the opti.
kelleysj
kelleysj

Posts : 194
Join date : 2010-03-16
Age : 39
Location : Logansport, IN

Back to top Go down

Engine fails when getting warm under load or idling Empty Re: Engine fails when getting warm under load or idling

Post  quarterflash Thu Dec 10, 2015 8:51 am

Thanks for your help kelleysj. However the diagnostic that has been run since posting this problem indicates an Optispark issue. So a shiny new unit is on its way. I will post the answer when we get it sorted.
Incidentally where have you mounted the ICM. Looks like mine will be under the dashboard with the two brake servos.
Regards
Q

quarterflash

Posts : 74
Join date : 2010-08-04
Location : Stratford-Upon-Avon, UK

http://porschevy.co.uk/

Back to top Go down

Engine fails when getting warm under load or idling Empty Re: Engine fails when getting warm under load or idling

Post  spence Thu Dec 10, 2015 10:54 am

What kind of optispark did you buy? I hope you got an MSD or AC delco OEM replacement.... Anything else is crap and wont last.
spence
spence

Posts : 652
Join date : 2009-07-21
Age : 38
Location : St.Catharines, Ontario, Canada

Back to top Go down

Engine fails when getting warm under load or idling Empty Re: Engine fails when getting warm under load or idling

Post  quarterflash Thu Dec 10, 2015 11:10 am

It was a difficult decision - do I spend £380 or £180? Especially as I suspect MSD and Ac Delco is made in china these days.
Regards
Q

quarterflash

Posts : 74
Join date : 2010-08-04
Location : Stratford-Upon-Avon, UK

http://porschevy.co.uk/

Back to top Go down

Engine fails when getting warm under load or idling Empty Re: Engine fails when getting warm under load or idling

Post  spence Thu Dec 10, 2015 11:18 am

Yes, the MSD and AC delco cost is more; but I'd still go with those. It's not worth having to pull everything off the front of the engine to do it again... The cheap ones are known for having issues right out of the box.
spence
spence

Posts : 652
Join date : 2009-07-21
Age : 38
Location : St.Catharines, Ontario, Canada

Back to top Go down

Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum