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-   -   start problem is bad !!PLEASE HELP!! (http://www.peachparts.com/shopforum/tech-help/282931-start-problem-bad-please-help.html)

86 300E 08-15-2010 01:29 PM

start problem is bad !!PLEASE HELP!!
 
im having the same trouble in my 86 300e. mine has 126k on it and is idling rough and it starts on the second or third crank...
^ BEFORE

v NOW
this morning i went to go and get start the car before work. i cranked it over 3 short times and still nothing, so i held on the started for 10-12 seconds engine continued to crank... until if finally fired up on the 2nd 12 sec. crank.

I need to fix this tonight this is my only car while my jeep is in the body shop (GF decided to remodel the front-end)

thanks!

david s poole 08-15-2010 02:26 PM

check the ovp relay behind battery and make sure that fuse isn't blown.

86 300E 08-15-2010 03:45 PM

yes. i have checked this lastnight and the fuse is not blown.

86 300E 08-15-2010 04:01 PM

what about the COLD START VALVE.... im not sure where anything is located
i cant get a manual until usps gets it here

david s poole 08-16-2010 10:05 AM

the cold start valve DOESN'T OPERATE UNLESS THE AMBIENT TEMP IS DOWN AROUND 30F.chance that your ovp relay is defective?

Ed Richardson 08-16-2010 12:28 PM

How does it run after starting?

Ivanerrol 08-16-2010 08:40 PM

A KE injection car will run very well without the added inputs of the O2 sensor etc.
The O2 sensor is there to fine tune the injection system for emission reasons.

The OVP powers the IACV, the cold start and the EHA circuit.
If the OVP is not working the car will be hard to start when cold and the IACV will not come into play.

Disconnect the electrical connector from the EHA and the car should idle very well. if it doesn't then there is something basically wrong with the H.V. electrical's or fuel delivery setup. If the engine idles too fast it maybe that the OVP is not supplying power to the IACV.

Just because the fuse is not blown on the OVP doesn't mean it's not faulty.

86 300E 08-17-2010 08:35 AM

great lots of help.
Ed, after i get it started the car seems to run fine. the idle is a little rough but its not shaking or sputtering badly.

can some one link me a pic of the OVP just to make sue im not being a dumb a**. and looking at soimething that is incorrect.

Note: the gas guage is bouncing back and forth. ( i hit the dash and it does not move just everyonce in a while... at all levels of gas) do you think this would cause the start problem?

thanks again

86 300E 08-17-2010 08:36 AM

Ivan, can you post a pic of the eha location. PLEASE

Ed in Va. 08-17-2010 09:10 AM

Quote:

Originally Posted by 86 300E (Post 2527012)
great lots of help.

can some one link me a pic of the OVP just to make sue im not being a dumb a**. and looking at soimething that is incorrect.

The OVP relay does have a fuse on top if it like my 95 E320, it's a metal wrapped canister about 1'5 inch rectangle by 3-4 inches long.

Just a thought. I had a variety of electrical issues a couple years back on my 95, a new battery solved the problem, even though the old battery had no indication of being weak.

Note: the gas guage is bouncing back and forth. ( i hit the dash and it does not move just everyonce in a while... at all levels of gas) do you think this would cause the start problem?

thanks again


Ed in Va.

sptt 08-17-2010 09:50 PM

Take off the Air Housing Assembly. First take off the cover that exposes the air filter, then take off the bottom half by unscrewing the 3 retaining screws and slide/lift the assembly out of the air intake and up and off. You'll see the EHA Valve (Black) on the backside of the fuel distributor(aluminum like colored tubes) towards the firewall. I took mine off this morning and made the 1/4" adjustment with a 2mm hex (take out set screw, be careful, it turns very easy and you may not realize you are turning it). It started up much easier after that and idles better.

86 300E 08-17-2010 11:40 PM

Thanks for all your help i'm glad i found this fourm and i owe you all a solid. if your in eastern washington state i owe you a beer or two.

86 300E 08-17-2010 11:42 PM

Ed, new battery bought and did not change a thing... it was worth a try tho!
THANKS

johnflight1 08-18-2010 08:46 PM

On my 88 300E the fuel accumulator was causing the hard starts (whole lotta Cranking)finally it would start and run ok. I also think there is a check valve by the fuel pumps that prevents fuel from running back. check those 2 items out

86 300E 08-19-2010 05:22 PM

can someone link me a site with a dyi for clusrer removal?


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