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"fusQuanto" <com> wrote in message
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Mitsubishi: eclipse hesitates/stalls in mornings only
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- 11-24 06:07 PM #1fusQuantoGuest
eclipse hesitates/stalls in mornings only
I have a 1994 Mitsubishi Eclipse 1.8L, 118,000 miles. Only in the mornings
after I drive it for about a minute, the car will start hesitating at lower
rpms, and sometimes stalls out. I can put it in neutral and lower gears to keep
the rpms up and keep it from stalling out. If it is 3pm for example, and the
engine is cold, it will have no problems. The problem is only there in the
mornings. I've taken it to two Mitsubishi dealers and they recreate the problem
in the mornings, but have not been able to diagnose it. All belts, fuel filter,
plugs, wires, distributor cap, and rotor have been replaced. The dealerships
ruled out the fuel pump as being the problem. The computer is not throwing out
any codes. Anyone have any idea what it could be?
- 11-24 08:49 PM #2SamualGuest
Re: eclipse hesitates/stalls in mornings only
- 11-27 04:12 PM #3EclipseGuest
Re: eclipse hesitates/stalls in mornings only
The EGR and PCV should be looked at. If these aren't replace within a 5
year period you can get early morning hesitation due to failing funtion.
- 11-27 06:23 PM #4jonnyGuest
Re: eclipse hesitates/stalls in mornings only
Has this car got manual valve adjustment,??
If so then adjust the valve clearance ,Its a known problem
with tight valves and a cold motor ,Either starting problems or
hesitation when cold ,
I would at the same time clean the throttle butterfly ,and take off
the battery pole afterwards to reset the management system.
- 11-27 06:55 PM #5fusQuantoGuest
Re: eclipse hesitates/stalls in mornings only
On Sat, 27 Nov 2004 19:23:48 GMT
"jonny" <com> wrote:
when it is 4pm and the car has not been used all day, the problem is not there.
is that still consistent with what you're advising?
- 11-28 10:14 AM #6jonnyGuest
Re: eclipse hesitates/stalls in mornings only
yes , Its just more apparent the colder the engine is.
the time of day has no bearing ,The engine temp does.
- 11-28 02:25 PM #7NobodyGuest
Re: eclipse hesitates/stalls in mornings only
Did they happen to look at the fuel trims when it was doing it? That sounds
like a classic intake leak. One of your hoses is cracked or off.
--
Todd Honea
"jonny" <com> wrote in message
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- 11-28 02:38 PM #8fusQuantoGuest
Re: eclipse hesitates/stalls in mornings only
not sure what 'fuel trims' are but when it was doing it they hardly had any
chance to diagnose stuff cuz it lasted like 20-30 mins before it stopped.
how can i check? tel me what to look for in the haynes manual
On
Sun, 28 Nov 2004 15:25:02 GMT"Nobody U. Know"<com> wrote:
- 11-28 04:07 PM #9NobodyGuest
Re: eclipse hesitates/stalls in mornings only
Fuel trims can only be had with a logger or diagnostic tool.
What I would suggest is to start from the air filter and trace the intake
path to the throttle body. Check the hose connections and clamps. You may
want to pull them off and thoroughly inspect them, cracks have a tendency to
hide on the underside of the hoses.
At the throttle body, check all of the little vacuum hoses and make sure
they aren't cracked or in the wrong places. You may just want to pull them
off one by one and inspect them. The routing diagram is probably on the
hood.
--
Todd Honea
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- 11-28 04:42 PM #10NirodacGuest
Re: eclipse hesitates/stalls in mornings only
If the checking doesn't find a cracked hose or other leak, try spraying some
"engine start" fluid around the hoses and connection points, and air channel
flanges.
This stuff is HIGHLY flammable and will cause the engine to change RPM
momentarily when sucked in. Use it SPARINGLY as a last resort. I've found
many vacuum leaks this way.
"Nobody U. Know" <com> wrote in message
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