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1997 sl2 satun started with rough idol now won't start . cranks over and floods. has new fuel filter & air filter

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  • Cars & Trucks Master
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Fuel pressure regulator leaking , maybe ! Pull the spark plugs out to if they are wet with fuel , if so clean them an reinstall them . Then try starting the vehicle in clear flood mode .

Clear Flood Mode
If the engine floods, it may be cleared by pressing the accelerator pedal all the way to the floor. The PCM then completely turns OFF the fuel. The PCM holds this fuel injector rate as long as the throttle stays wide open and the engine speed is below approximately 400 RPM. If the throttle position becomes less than approximately 75 percent, the PCM returns to the starting mode

Posted on Dec 31, 2016

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  • Cars & Trucks Master
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Check the fuel pressure regulator. Pull the vacuum hose off it, If it smells of gas, Replace the regulator. Diaphragm broke and is flooding the engine threw that vacuum line. You'll also need to replace the spark plugs. Gas will foul them out also.

Posted on Dec 31, 2016

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1 Answer

When the outside temp is below 30 degrees my 1994 jeep grand cherokee 4.0 will not start


lots of guesses. sure.. common here.
first would be a real tuneup , using the 60,000 mile list. for sure.
filters and spark parts. (my guess is you did)
1994 is a great year, all 93+ jeeps are good from 93 to now.
I presume this is USA car, and you scan it and there are no
DTC errors.????
seems its flooding ,
if 5% throttle makes it start, that is lack of air or flooding
if wont start and the super secret WOT crankings clear flood , then was flooded, Wide open throttle cranking , cuts all fuel (the secret)
so is , IAC/ISC stuck closed, chean it yet.
or injector leaks (pass the injector leak down test ,does it?0

got 500k miles o jeeps from 88 to 99+
and the ISC stick on them all.

the ISC is the electric, ldle speed control valve.
if it sticks closed, you cant get full air supply to start.
had to clean mine every 10 to 20k, miles.
until i found the magic, spray that cured that.
"klondike gun lube spray": looks like teflon after it dries.

that run rough started is called misfire.
and is flooding, (if injector are not leaking) its air supply wrong.
one more thing,
the ECT must read 30F when parked overnight, and was 30f.
see? a cold engine will be near ambient air, first thing, in the morning.

running old fueL:?
running summer fuel from last August?
the ECT sensor causes injections to match true temps.
make sure it reads right for all bets off.

clean ISC first. not shot gun parts
for that cash you could have got a nice scan tool.
like this.

http://www.walmart.com/ip/Equus-3140-Innova-Diagnostic-Code-Scanner/14644660

the prefect tool for 93-95 jeeps. does OBD1 on JEEPS !!!!

Mar 03, 2015 | 1994 Jeep Grand Cherokee

1 Answer

Car starts and idols great but cuts out and dies when I give it gas, like it's flooded. Already changed fuel pump skreen and fuel filter. Air, fuel mixure?


  • too high fuel pressure. 30 ok 60 bad. PSI
  • leaking injectors
  • ECU injector driver shorted, turning on injectors full time
  • injector drive wire shorted to ground bad wiring.
  • ECT stuck at -40F (alaska temperature) USE a SCAN tool.
  • MAP sensor vacuum hose/pipe clogged (ECU thinks your are going up hill all the time and floods.
  • The scan tool can check each , but not fuel pressure.

that is a start,

Feb 20, 2014 | 1997 Toyota Corolla

1 Answer

1997 ford contour


hold pedal to floor and it tries to start ! Not sure if your vehicle has clear flood mode , Most vehicle have clear flood mode strategy programmed in the ECU , PCM ,ECM .when you hold the accelerator pedal to the floor the engine computer cuts down on the injector on time to clear a flooded engine .
Fuel pressure regulator problem ,maybe ! You say there was a blown fuel pump fuse an you replaced it ? Fuse's don't blow for no reason ? Fuel pump bad , short , too much current !
Disconnect the mass air flow sensor an see if it starts !

Apr 24, 2017 | Cars & Trucks

1 Answer

Bad cam shaft senser


You could have a faulty engine coolant sensor or intake air temperature sensor. Fuel injectors clogged or dirty flooding engine.
Clean fuel injectors, replace fuel filter and air filter, and see if the problem persists.
If it does ECT sensor is bad. If CMP sensor was bad, the vehicle won\'t start whether cold or hot. CKP senso and CMP sensor work together if either one fails, the vehicle won\'t start. Have the vehicle code scanned.

Apr 18, 2013 | 1999 Chevrolet Tracker

2 Answers

Why won't my 1997 Saturn SL start?


you have spark at the plugs ..thats something

spray stay you mug
into the throttle body see if the motor will cough

tank needs draining and have fresh fuel
fuel pump has a filter and fuel relay

crack the fuel line connection to the rail to see if there is fuel reaching the rail and correct pressure

if sitting 6 years.. not being run regularly
do a compression test
lifters may be stuck
rings may have lost tension



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Apr 07, 2017 | 1997 Saturn SL

1 Answer

Engine won't start after hot but will after cools some


ENGINE FLOODING REPLACE AIR FILTER AND CLEAN FUEL INJECTORS DIRTY LEAKING FUEL INJECTORS WILL LEAK CAUSE ENGINE TO FLOOD OUT.

Oct 30, 2011 | 1996 Subaru Legacy

1 Answer

Car Starts Really Rough.


Check the fuel/air sensor and air filter. When you first start the car only press the accelerator pedal once. If while turning the ignition switch you here a grinding noise that would be your starter going out. The smell of fuel signals that your car is either flooded from pressing pedal or fuel mixture is incorrect. Hope this helps.

Apr 19, 2010 | 1997 Chevrolet Cavalier

1 Answer

1997 k1500 5.7l po303 misfire on cylider 3 ...


could be fuel injectors flooding cilinder fuelregulator not working right there is new up gradeinjector system

Feb 10, 2010 | 1997 Chevrolet K1500

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