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Why wont my 2001 efi 225hp merc engine come up to operating temp

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Thermostat stuck open probably .or a piece of sand it stuck in it

Posted on Dec 13, 2016

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Posted on Jan 02, 2017

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2004 Grand Cherokee 4.0L. Where is the temperature sensor located?


no symptoms posted, just and wide range easter egg hunt and no engine or transmission options stated "drive line" which.?

there are many temp sensors. on jeeps. and more each year it seems.
  1. EFI ENGine temperatures. ECT.
  2. transmission temperature (TCM input)
  3. outdoor air temp. (and option mine has... case in point)
  4. air temperature of the air inducted in to the engine (EFI IAT)
  5. HVAC , climate control temp sensors. at least 2.

post symptoms, then ask how to diagnose car.

Jun 07, 2015 | 2004 Jeep Grand Cherokee

1 Answer

C200 Merc 2009 model, engine turns but car wont start, why


same for all engines. (no engine stated, so no exact answers)
is your gas or diesel (ill guess gas)?
gasoline and not LPG or other fuels. real gas ,nor flex fuels on E100
cranks but no starts.
blown fuses, check fuses first, ( always #1 with EFI)
bad gas.,
the first check is spark , gas dont burn lacking SPark (mr,otto cycle)
watch funny guy SCOTTY.
https://www.youtube.com/watch?v=064Ilsz8Fzg&NR=1&feature=fvwp

any engine can run on test fuel, if it has spark (Otto)
some engines will never start
  1. lost compreesion 1 or more cylinders
  2. melted CAT converter, blocking exhaust
  3. EgR stuck open, wide, if your unstated engine has one.
  4. fuel pressure zero or 10psi. dead. must be at spec.

Dec 18, 2014 | Cars & Trucks

1 Answer

Where is the heat sensor on jeep cher 2001 4.0 engine.


to what? there are many
first post symptoms or job. why must be guess all that.
engine running bad, scan DTC errors? what?

some engines have up to 5 sensors. related to heat.
IAT, air temp
ECT water temp coolant
dash gauge heat.
mAF sensors have one. if opted.
a/C over heat sensors.

my guess is its the ECT.
am i correct?
this is part of the EFI fuel injection system.
click chapter fuel systems. chapter 14
page 50 , figure 40
see it, its screwed in to the thermostat housing
i bet it not bad.
the tests are supper easy, ask,
if water temp is 180f + hot.
and the scan tool shows, 180F , ITS NOT BAD.
easy huh?
http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service

Sep 27, 2014 | 2001 Jeep Cherokee

1 Answer

Car wont start warmkh laser efi


what year model is it? What engine does it have? Perhaps since Mazda made the car for Ford, you could also search Mazda problems

Apr 06, 2014 | Ford Laser Cars & Trucks

1 Answer

2002 l300 tem sensor location


which one there are 4 or more.?
let me name them.
1: ECT (runs EFI ) engine coolant temp.
2: dash gauge, (a toy) (engine heat gauge)
3: IAT. (EFI ) intake air temp
4: AC over temp.?

Nov 22, 2013 | 1993 Honda Accord

1 Answer

I have a 2001 chevy impala with a 3400 v 6. when the engine is cool the fans run but when the engine reaches operating temp the fans go off.


If the check engine light is not on, I would want to check the computer with a scanner to see what the temp sensor is telling the computer the coolant temp is. The problem could be in the computer or the fan relay.

Sep 05, 2012 | 2001 Chevrolet Impala

1 Answer

Periodic misfire on a 2001 4.6 merc. Gd Marquis


if it does it just as you start to go up hill just before it downshifts from over drive it is most likely your plugs or a weak ignition coil mine did the same thing and a good set of plugs fixed write up.

Apr 18, 2012 | 2001 Mercury Grand Marquis

1 Answer

2001 Audi TT WONT START EPC LIGHT AND CHECK ENGINE LIGHT


if vechicle getting spark and fuel.timing could be off due to a worn timing belt.i would do a compression test see what condition the engine is in.

Nov 17, 2011 | 2001 Audi TT

1 Answer

Engine Idle Problem - Intermittant


I've just had the same thing on my Elantra 2001. I took it to the dealership and they fixed it easily; it was a malfunctioning 'Throttle Position Sensor'. They fixed the faulty connection but they said a new one would have cost about 175GBP (275USD) fitted. Hope this helps.

Mar 17, 2009 | 2001 Hyundai Elantra

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