Question about 1989 Chevrolet Corsica

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Throttle body when you shut off engine it is hard to start there is fuel leaking in to the throttle body

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This is caused by a leaking injector barrel seal or the injector itself, the seals are replaceable and cheap, just lube the new one with vasoline before installing it, if that does not cure the3 problem you will need to replace the injector.

Posted on Dec 02, 2008


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5 Answers

2002 van 1500, 5.7 engine. Why won't it start?

Throttle body injection I assume , watch butterfly on injector and c if it injects fuel , if it starts w ether but shuts off its still not getting fuel into cylenders and since your fuel pressure to engine is normal , the problem is in the throttle body or injection ..possible electrical ...if for some reason u still have a carbureted engine hit me back up it could be sumin diff

Nov 13, 2015 | GMC Sierra 1500 Cars & Trucks

1 Answer

1989 tracker. hard to start when cold but starts fine when warm.

89 has the old stand alone spark distributor.
the ECU is spark free, (no player here)
so here is the list for this engine 1.3 or 1.6L
the 1.3 has a carb. (last one) and is NOT EFI ,
you never said which engine it has. so ill guess at the 1.6L
This engine will have hard starting for the fooling reasons.
we dont guess at it we just do the tests.
  • Bad fuel.
  • Never tunedup this decade or every 60,000 miles per opr. guide.
  • low engine compression 150 good, if all are very low the cam timing belt slipped., (they all do , ignored) and is 60k service point.
  • CEL dead key on, bad ECU or lamp bad.
  • CEL glowing running, its telling you what is wrong, get the flash codes (DTC's)
  • Too high fuel pressure. (bad regulator in front of TB)
  • ECT bad. the 2 pin engine coolant temp sensor is bad. test it.
  • The injector leaks in the throttle body (look with eyes)
  • You find that adding 5-10% throttle cranking makes it more easy that is a bad, IAC valve, the valve at the base of the throttle body is stuck closed and kills all cold start air supply. making cold starts very hard, unless tricked with right foot. yes?
  • when any gas engine fails to start cold, i check for too much or too little starting fuel. and for very good spark.
  • Good engine, good spark the good fueling, there are tests for each, ASK?

Nov 23, 2013 | 1989 Geo Tracker

1 Answer

I have a 1999 Saturn 4 cyl. The engine idles around 1200rpm. Even during normal driving the engine still idles high even after warm up. Sometimes the engine won't start after it has sat for 15 minutes or...

leaking o-rings at the fuel injectors would explain the hard starting when warm-when you hold the petal to the floor, it shuts off the injectors, which will make it possible to start it after the injectors leak down on shutdown. O-rings are easy to replace, just disconnect the battery and pull the injectors straight up to remove, get the old rings out and install the new ones, light lubricate the base of the injectors and pop them back in.

that might explain the high idle too, although usually the idle is not consistent when the injectors are leaking at idle-idle is rough. I would make sure the engine coolant temperature sensor is new (they are very important on saturn, the original one is plastic and they are known to crack easily-the replacement should be brass)-also, check the Idle air controller, best to remove the throttle body (4 bolts) and remove the IAC and clean it thoroughly, being careful not to get the top half wet-sensitive electronics. Clean the post that the IAC goes into, and clean the throttle body (both sides) while you have it out.

Feb 21, 2011 | 1999 Saturn SL

2 Answers

I have a 1993 gmc 2500 van with a 4.3 v 6 engine stalls will not start. get no fuel at throttle body inj. if I add fuel to throttle body van will start and run as long as I give it gas . when allowed to...

You must have a leak or one of the lines are clogged. The reason it stays running when your on the gas is because it keeps the fuel pressure up. Then when it shuts off it loses all pressure in the line and the pump cant handle the initial start with the leak in the line.

Sep 14, 2010 | 1993 GMC G2500

1 Answer

Check engine lightp0170 fuel trim bank one check engine code the light stays on problem comes and goes runs rough feels like its going to stall untill i press hard on the gas and runs fine again have...

I'm guessing your mixture is too lean and it's possibly running a bit rough and there isn't enough fuel getting to the engine. A rich mixture is too much fuel, but that error is usually related to O2 sensors. It might be the O2, but 'trim malfunction,' you're looking at a vacuum leak. Check the oil separator valve then the throttle body gasket and then the intakes. Most likely a vacuum leak and the throttle body, oil separator and intake are the most likely. Run your hand around the bottom of the throttle body and oil separator, if it's greasy/oily there, there's a leak.

If there is no leak, test the MAF sensors...they might need cleaning, and in a worst case scenario, might need replacing.

Mar 03, 2010 | 2001 Subaru Forester

1 Answer

93 lesabre - starts right up but cuts off when you take your foot off the accelerator.

check your map sensor as well as the range on your tps/ throttle postion sensor and your throttle body gaskets sometimes that engine will get a air leak that corrupts the vacumn necessary to operate the fuel rail which in turn will shut the fuel off at a idle

Jan 15, 2010 | 1993 Buick LeSabre

1 Answer

1988 jeep larado 4.0 fuel injected thats hard to start hard to ke

Take a can of parts cleaner and spay it around the throttle body to check for a leak and if it is not there then sprat it around were your vacum hoses are connected to the engine that is how i check for vacum leaks.

Sep 09, 2009 | 1988 Jeep Cherokee

3 Answers

Honda 97 crv engine turns off while driving, and hard to

, pull a plug wire and ground it to the engine body and check for spark. if spark then
check your fuel system pressure, fuel pump

Aug 28, 2009 | 1997 Honda CR-V

2 Answers

2000 Bravada hesitates when starting frm a stopped position.

get your hands on a fuel pressure tester.. this will tell u if u are losing fuel pressure between starts... those 4.3 v6's have a big problem with the poppet valve (injector assembly) leaking. causing the engine to flood...and losing pressure to push threw the injector... causing the hard start...but the fuel pump module will also lose pressure as has a check valve to keep that from happening but from time to time they do leak allowing fuel to flow back into the tank...with this pressure tester, have a friend turn the key to on.. after you hear the fuel pump shut off immediately pinch off the two fuel lines going from the tank to engine you can find these right below the driver side door. you will find the fuel filter there which is the pressure hose the other hoseis the return... both rubber hoses that will not be harmed by the vise grips or tools be your choice the other metal line is a vapor line which is not important. after you do pinch the lines off check the fuel pressure if it still drops with no signs of slowing down then the poppet valve is defective...if it does not move then you know it is definitely the fuel pump module (fuel pump assembly)

Aug 22, 2009 | 2000 Oldsmobile Bravada

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