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Trooper starts from cold no problem when engine warm engine management light comes on and is difficult to start engine turns for a long tme before fires up


no year, no engine stated, i4 or v6?
the cause is many hard starts
the lamp glowing means get car serviced
or scan it yourself and read the service book on that error or errors, and do the tests stated there.

as far as poor started
THIS is called misfire.
and has 50 causes

#1 is never getting a full tuneup this decade.
ill not list the nifty fifty,
in a shop , they use tools
to conduct tests (engine/spark/fueling)
saving the 50 guesses.

hot starts fail or weak
engine not really hot 180f + themostat bad.
or ECT reads 140 when its 180f actual,ECT bad.
causes flooding that. and hard hot starts.
scan the ECT when hot. first.

Feb 18, 2017 | Isuzu Trooper Cars & Trucks

1 Answer

Where is the oil sending unit on a 1996 mercury cougar xr7 ? Its cause my oil pressure gauge is bouncing up and down...i dont know why...can anybody please help me thank you so much


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The low oil pressure warning lamp will illuminate anytime the ignition switch is turned to the ON position without the engine running. When the engine is running, the light also illuminates if the engine oil pressure drops below a safe oil pressure level. To test the system, perform the following:
If the oil pressure light does not work, perform the following:
  1. Turn the ignition switch to the ON position.
  2. If the lamp does not light, check for a broken or disconnected wire around the engine and oil pressure sending unit switch.
  3. If the wire at the connector checks out OK, pull the connector loose from the switch and, with a jumper wire, ground the connector to the engine.
  4. With the ignition switch turned to the ON position, check the warning lamp. If the lamp lights, make sure the oil pressure switch is properly grounded in the cylinder block, and if so replace the oil pressure switch. If the lamp still fails to light, check for a burned out lamp or disconnected socket in the instrument cluster.
To diagnose an oil pressure light that stays on, perform the following:
  1. Check the engine oil level and top off as necessary. If the engine was 2 or more quarts low on oil, test start the engine after topping off the oil level and recheck the oil pressure light operation. If the light stays on, stop the engine immediately and go to the next step.
  2. Disconnect the wire at the sending unit, then turn the ignition switch to theON position. If the light remains on, check the wire from the sending unit to the gauge for being shorted to ground and repair as necessary. If the light goes out, turn the ignition switch OFF and go to the next step.
  3. Replace the oil pressure sending switch with a known good switch.
  4. Start the engine and check the oil pressure light operation. If the light stays on with the engine running, stop the engine immediately to avoid severe engine damage until the cause of the problem can be determined.

WARNING
If the oil pressure light remains on while the engine is started, stop the engine immediately. Do not operate the engine until the cause of the problem can be determined. Operating an engine with low oil pressure will cause severe internal damage.

Possible causes for an oil pressure light to stay on are:


Pinched or grounded sensor wireDefective oil pressure sending unitRestricted or severely leaking oil filterExcessive internal engine bearing clearance.Insufficient or severely contaminated engine oilBlocked oil pump pickup screen or severely worn oil pump

Mar 31, 2016 | Mercury Cars & Trucks

2 Answers

Temp gage gas gage dashlights don't work


Check all your fuses make sure they're good. This can also come from bad ignition switch or ignition switch going out

Mar 05, 2016 | 1993 Geo Metro

1 Answer

Heater light flashing on 1997 vitara jeep not start


what country, which engine>? G16?
where is this light. try to be exact, (on the HVAC controls)
or in the dash speedo cluster?
and we'd need to know if it has an icon, ?
better post , a real photo of lamp.
did you overheat the engine (coolant gauge needle , on H)

as the dash lamps vary by every country a vitara is sold.
the operators guide (glovebox) is the way to know what a lamp means. (warnings) and is unique to your country! fact !

i see UK cars (we are USA here) have CAT overheat icons.
(we dont have that here)
and means just that. (engine too rich and misfiring or rich and exhaust cracks, sucking air ) causing CAT to OVERHEAT.

no start. lets work that now.
ok, key on, CEL glows. (check engine light ) must glow
does it.
does engine crank? fast?
if yes, is the IMMOblizer lamp (dash) happy? (oper, guide again)
if cel on , Immo happy
then it cranks fast ,do you have spark to all cylinders of unstated size engine?

our cars the USA OBD2 scan tools all work in 1997
but in say UK not. so ... that to changes diagnosis BIG TIME>.

Feb 17, 2015 | 1997 Suzuki Vitara

1 Answer

How to fix .


post symptoms like this.
i check head lights, they work key out , so do they?
i turn the key to Ignition on.
the dash self test lamps all glow, do they,?
look at that CEL lamp, (aka SES) lamp, check engine lamp
it it dont glow the engine brain, lost power, fuse, (head lamps work)
if the CEL glows. then now crank the engine, (start pos.)
does it crank robustly? yes /no?
yes, do you have spark>
no, does car crank over fast with jumper cables to running donor car?

that is start, no pun.

Jul 18, 2014 | 1999 Saturn SL

1 Answer

Gauges top working security system not working vehicle will start but only runs 2 seconds


fuses, check all fuses in all fuse boxes. under dash and hood.
the IMMO SKIM , stops fueling of the engine.
the SKIM lamp in the dash shows, that. it sticks on or flashes
you have a transponder key ,right?
and you insert the key as the oper guide states, and the lamp SKIM
self tests. then must go out, if not, the engine will never run more than 2 seconds by Design.
  1. so fix the dead dash first.
  2. then get the SKIM lamp out
  3. then start car.

Sentry Key Immobilizer module.

Mar 15, 2014 | 1999 Jeep Grand Cherokee

1 Answer

2004 PT Cruiser lost power then died, wont start now.


If no check engine comes up, it would be PCM. PCM must set CHECK ENGINE LAMP when IG on.. Also check other instrument panel warning lamp come up. If not, Main Ampere Fuse must be checked.

Jul 23, 2013 | Cars & Trucks

4 Answers

I have a '91 F350 Dually w/a 7.3I diesel and it will not start when cold without using starting fluid. I replaced the glow plugs but they all checked good with a meter... currently recharging the batteries...


YOU CAN HOOK A 12 VOLT TEST LIGHT BETWEEN THE POWER RELAY OUTPUT TO GLOW PLUGS AND GROUND.WITH ENGINE COLD IGNITION SWITCH ON ENGINE NOT STARTED.THE TEST LAMP WILL LIGHT WHEN IGNITION IS TURNED ON.LAMP WILL BE LIT FOR FOUR TO TEN SECONDS DEPENDING UPON ENGINE COOLANT TEMPERATURE.TEST LAMP WILL THEN REPEAT ON OFF CYCLE.AFTER ENGINE IS STARTED.THE TEST LAMP CONTINUES TO REPEAT ON OFF CYCLE FOR 20 TO 90 SECONDS.LAMP WILL CYCLE FOR A MAXIMUM OF 90 SECONDS AFTER ENGINE IS STARTED.ENGINE STOPPED THEN RESTARTED.TEST LAMP WILL LIGHT IF COOLANT TEMPERATURE AT THE ENGINE TEMPERATURE SWITCH HAS FALLEN BELOW 165 DEGREE.BETWEEN STARTS THE SYSTEM WILL OPERATE FOR A SHORTER PERIOD OF TIME THAN WITH A COMPLETELY COLD ENGINE.TEST LAMP WILL REMAIN OFF. IF COOLANT AT THE CONTROL SWITCH PROBE IS AT 165 DEGREE OR HIGHER.

Mar 27, 2010 | Ford F-350 Cars & Trucks

1 Answer

I have mazda6 2005 car , service engine lamp glow


the problem is solved partly, the lamp indication of engime service in front panel is gone OFF , what i do is : i take off the battery head for five minutes and the return it then the lamp goes OFF, but till i feel that the engine not work correctly because of vibration in engine ( not continuoes), i check nozels and fire ignitions they are correct in work , till i want help to solve the engine vibration. thanks

Dec 11, 2008 | 2004 Mazda 6

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