Question about 1991 Chevrolet Silverado 2500

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Vehicle stalls at stop signs after RPM has been up.

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Most of the time it is a defective idle control valve or depending on application the idle control selenoid

Posted on Mar 23, 2011

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Low idle & vibration at idle


I don't know if this will help. Had a similar problem with a 99 Blazer.
Would drop to between 300 and 500 rpm at stop signs and red lights, would stall and shake.
Did all the same checks, replaced mass air flow sensor, replaced cam sensor, cleaned the fuel injectors but the problem was still there.
Replaced both #1 and #2 O2 sensors in the exhaust pipes and now the vehicle runs fine. The idle is back to a steady 750 rpm in all stopping conditions. The Mass air flow sensor and Cam position sensor get information from the O2 sensors.

Apr 10, 2014 | Ford Transit Connect Cars & Trucks

1 Answer

2002 jeep Cherokee 2.5crd engine cuts after removing foot from accelerator pedal . no warning lights come on. let the vehicle stand for 10 minutes then it starts up again. can it be injectors or ignition...


check all fuses.
cuts out hot or cold engine.????????
if it wont start and car gets 60k tuneup (?)
then connect scan tool and crank for 5 seconds.
see if you get scan DTC errors , cranking (release key) see em?
stalls are caused by over 50 reasons. guessing is impossible or very expensive.
enter: Diagnosis,
you take measurements, and find the failure path then work that path like bird dog.
2.5L 4cyl engine. I just sold min last week. with 5sp M/T
cuts out, does that mean the engine stalls?
we need to know what it really does.
1: stalls (engine rpm drops to 0 RPM)
2: engine rpm drops to 300rpm and shakes.
3: power loss from engine?
4: only stalls at stop signs...?
5: bogs all them time, same as #3
6: engine misfires (shake)
7: bogs only on throttle TIP-IN then recovers.
8: bogs only on hills.

i wait.
when dead, is spark lost?

Aug 21, 2013 | Jeep Liberty Cars & Trucks

1 Answer

Come to stop truck wont idle it shutts off


That's a very high rpm for an idle! It should be between 700 to 9oo rpm. This truck needs a tune up, at least!

Jan 21, 2013 | 1997 Dodge Ram 1500 Club Cab

1 Answer

My car is turning on but stalls I have a Volkswagen Jetta 06 2.5 engine. PLEASE HELP


Vehicle starts but stalls.These types of problems are very common on most of vehicles.There are few possibilities,that can cause stalling problem on vehicle.The vehicle brand and model may differ but problem is same.------I provide you few suggested help link to troubleshoot these issue and solve the problem:-----------
1995 Toyota Corolla: Stalls, Sputters and Pops Through Intake Manifold? http://whatisbyme.blogspot.in/2012/05/1995-toyota-corolla-stalls-sputters-and.html
-------------1994 Toyota 4Runner: Stalls and Stops While Driving? http://whatisbyme.blogspot.in/2012/05/1994-toyota-4runner-stalls-and-stops.html
-----------1992 Chevrolet stalls and shutdown? http://schematicsdiagram.blogspot.in/2012/04/1992-chevrolet-stalls-and-shutdown.html
-----------Dodge Dakota stalls, stumbles at idle. Has low fuel flow and runs hot? http://schematicsdiagram.blogspot.in/2012/03/dodge-dakota-stallsstumbles-at-idlehas.html
------------Engine stalls when gas is given? http://technoanswers.blogspot.in/2012/01/engine-stalls-when-gas-is-given.html
------------1990 mazda 323 stalls and quit running? http://technoanswers.blogspot.in/2012/02/1990-mazda-323-stalls-and-quit-running.html
------------Nissan Pathfinder stalls and bucks on Acceleration? http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html
------------Car stalls when MAF sensor is connected? http://technoanswers.blogspot.in/2012/01/car-stalls-when-maf-sensor-is-connected.html
-----------Car Engine Stalls While Driving? http://schematicsdiagram.blogspot.com/2011/12/car-engine-stalls-while-driving.html
--------- Stalls And Dies At Stop Sign? http://www.howtobyme.blogspot.com/2012/07/stalls-and-dies-at-stop-sign.html

-----------
These are few help links,that will help you to troubleshoot the issue and solve the problem.Please keep updated,if any more help required.Thanks.

Oct 20, 2012 | Cars & Trucks

1 Answer

93 nissan sentra, hesitation


Tune it up and replace fuel filter.

Aug 18, 2017 | Cars & Trucks

1 Answer

My 2005 chevy cobalt rpm drops very low when coming to a stop. I changed the Oil and Plugs and it helped a little bit. PLEASE HELP


first check the throttle plate for carbon build up the look for the knock sensor harness rubbing onto the fan shroud

Jun 08, 2012 | 2005 Chevrolet Cobalt

1 Answer

Every time my car comes to a red light it powers off.why?


EGR (exhaust gas recirculation),or TPS (throttle position sensor) When the vehicle makes a stop and go into idle. The RPM is basically too low to maintain the RPM, If the vehicle runs 800 RPM in park or neutral and doesnt stall the setting is correct. If it stall in neutral or park and has a hard time accelerating you will need a TPS, The EGR can stall a engine if it stays open underload approching a stop where it doesnt close properly

Mar 15, 2012 | 1983 Ford Bronco

2 Answers

Corsica stalls at stop signs


sounds like the EGR valve is sticky, take a small screw driver and tap the valve when the engine is at idle and you will notice a change in the way the engine runs, if the vehicle smooths out disconnect the valve and drive the vehicle and it should not cut off please let me know and dont forget to rate me!!

Dec 02, 2008 | 1988 Chevrolet Corsica

1 Answer

2002 Lincoln LSE 3.9L 124,000 MI. stalls after a stop or hard braking.


Hi.
This may be a "sticky injector"

This would cause overfuelling - and a sudden rise in RPM. The ECU will see this and compensate - by shutting the injectors down lower - , which then stalls the vehicle.

Worth a try runnig cleaner through them.

Jul 10, 2008 | 2002 Lincoln LS

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