1990 Chev half ton 5.7L. stalling and ilding high

My car runs good when it's cold but stalls once it warms up ...

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My car runs good when it's cold but stalls once it warms up? ... In this situation, you can usually re-start the engine once it has hada chance to cool back ... it'll fill-up and exits fuel right up and out the vent tube which dumps it down the middle of ...

Car starts and after warmed up.. it dies!! HELP! - Honda-Tech

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Jun 28, 2010 - Car starts and after warmed up.. it dies! ... but if i let it sits for awhile till the engine is cool down it starts right up but after its warmed up.. it dies.

Troubleshooting an Engine that Stalls at Idle When Warm ...

www.gearheaddiva.com/.../troubleshooting-an-engine-that-stalls-at-idle-...

Check vacuum lines for leaks

If it's surging, make sure your radiator is full. Do a tune up, plugs, wires, etc. Put some fuel injector cleaner in your fuel tank. On a cold start the vehicle compensates for being cold by adding fuel. Once it warms up the computer tells it to quit adding extra fuel. If it is a bad sensor of sorts, check engine light should come on.

Remove the EGR you have carbon,that is keeping the pintle open,if there is no carbon and the pintle is open replace it.

Your only problem friend, is the temperature sending unit/sensor. Upon cold start, this sensor wil tell the computer to go into cold start mode putting a bit more fuel in and raising the idle a bit to keep it running when cold without using the throttle. Replace that sensor and your good to go. Makes sense, right?

Idle sensor or throttle body positioning sensor

sounds real easy either a bad idle air control solenoid or more likley a blown throttle body gasket. to test fro a blown gasket, with engine running and cool spray carb cleaner or brake cleaner around base of tb were it bolts to intake. when it hits the bad area, should idle down and be normal for a second or 2. iac is possible,try this first since its so common and let me know

Check your 91 Accord's ignition coil. The coil goes bad at apprx. 150k miles and cause the car to run rough, hard to start(long cranking time) in the morning, stall after the vehicle has warmed up, cut out while driving and backfire horribly when accelerating from a standstill.

put a throttle position sensor on the throttle boby this should fix the problem!

i know this may sound stupid but if your battery is old or a little weak on this vehicle the idle air control solenoid will act speradicley hunting for were it should be and the vehicle will stall.replace battery