Engine stalls while driving ?

Has the check engine light come on? This sounds like a trans module or shift solenoid problem. This guide should help us fix it

https://www.2carpros.com/articles/engine-stalls

Please run down this guide and report back.

your problem sounds like one I had on my 2003 gmc.I took it to shop and they put it on machine and it said all was fine(see even diagnostics can`t detect all problems).They told me it was either throttle body or fuel sensor switch(which on gmc is all one unit)I replaced throttle body and that fixed my problem also some other problems like hard shifting,surgeing when cruise on and shutting down(controle panel would say reduced power mode)and cut power,stop vehicle shut it off and start back up would run fine for bit then do it all over again.I hope this helps.The tech said that chevy and gmc are bad about this.Bad thing is I think trans shift modual is located in the throttle body($350)

truck had tune up had 44k or k44 run thru to clean out engine,was told dont think its the fuel pump,but it dies when shifted must keep foot on the gas pedal at all times.if have any ideas let me know

I am currently having the same problem with the same model truck. I have cleaned out the throttle body entirely and put new gaskets. I replaced the throttle position sensor, and I still have that problem. Also changed the fuel filter. My pump is running fine. I have no clue so far, but I guess I'll let you know if I figure it out.

I'm going to try the map sensor next, and if that doesn't work, I'll try the ECM. I'm hoping the map sensor works. You can test to see if you need to replace any of these, but I can't because I don't have the equipment. I'll let you know if the map sensor works tomorrow.

I have a 1990 Chevy silverado K1500 4x4 with 350 tbi. I have same problem its runs rough but stalls out in any gear. I have changed

Idle air control
Throttle posit sensor
Egr
Plugs wires cap rotor
Fuel pump and sending unit(forgot about ground and broke it)
Fuel filter
Fuel injector and fuel pressure regulator
Bought new Map sensor today lets pray. Also bought a good digital multimeter star testing connectors.
DID YOU EVER FIX YOURS?

same issue here what did your problem end up being? I have changed the TPS sensor, injectors, fuel regulator, plugs, wires, cap, rotor, coil, runs/idles strong but then put into gear and it stalls out. Any ideas would be great thanks. 1990 Chevy Silverado 350 V8 5.0L

Hello this is the exact problem with my brothers 1995 Chevy k 1500 extended cab did anyone ever find out that the problem was if so please let me know its driving me crazy not being able to fix it.

Im stuck... my motor stalls out of nowhere in my truck while driving and ideling randomly. I put a new ground on my battery and checked it, new fuel filter, alternator and catalytic converter. After it stalls the service engine soon light comes on and the motor surges and shifts late if I turn the truck off for awhile and turn it back on the service engine light turns off and the truck runs great. Im going to do the plugs and wires but after that not sure where to go from there. If anybody has any ideas would be much appreciated thankyou.

Scan the computer for code/s-start here-let me know what you find

Ok thanks will try tommorow

Ok I scanned the computer and got a code 24 it says vehical speed sensor or open or short circuit problems it started doing this after I put new ends on my battery cables the alternator wire is spliced maybe that don't know I'm going to recheck everything tonight

ok truck is still doing the same thing now i have a code 42 im lost says est or a few other things not sure what to do now

Test the coil, distributor pick coil and the ignition control module-

I took out the ignition module had it tested and it passed. Im not sure how to test the coil or the pickup coil the truck also started leaking coolant not sure from where all of a sudden dont know if its related. Also I took a look at the knock sensor the wire seemed fine but the wire that y's out to the starter is fried not sure what thats about either Im thinking about putting a whole new distributor, cap and rotor if that does not solve the problem I think im over my head.

my silverado k-1500 z-71 (1995) is shuting down when i put it into gear. it also will stop running if i turn on the lights or turn on the turn signal. i have changed the fuel filter and the injectors are working fine. does this sound like the fuel pump? the battery is also strong.

If system voltages are ok, I don't why turning on the headlamps would kill it. I'd have to be sure battery has a full charge, use a dmm. Also, check all battery connections coming and going from battery. Check charging system. Fusible links, where applicable.

1995 Chevy Silverado wants to keep stalling when driving what could this be ?

So it wants to stall while your just driving down the road?Also any codes in the computer?

yes just wants to stall have not got any code reads on it yet just got the truck

Will it restart when it stalls out?Lets see if there are any codes in the computer?

yes it will restart it only stalls when you get to 30mph .but when you give it gas it goes with no problem

Maybe a failing egr valve?Try unhooking the egr then driving it to see how it runs?Also see if there is any codes in the computer?

okay i will try that tomorrow and post how things work out thank you

Your welcome keep me posted.

When is raining or snowing and the car is running the revolutions of the engine start going up and down adn when I stop, the engine light lightup and the car die if I don't keep it accelerate or changed to parking. Is the only way to keep it running. This not happend when the roads are dry. All this happend when is wet I took the car to the shop but nothing was found because was dry already.

can you get teh check engine light scanned for codes that would really help.

with the engine running at night you can check to see if you see any sparks.

with engine running on a warm dry day spray salt water mixture slowly on the electrical components untill you see electricity arc through the mist or the vehicle starts to hesitate.

let me know what you find.

i took the hoas eoff the egr valve..and it did not stall the other owner said he put a brand new egr valve on with i can see it is new..do you think it could be the throttle position sensor ..my check engine light iss not on..thanks for your help

just a update..i took some carb cleaner and cleand it real good and the truck is runing fine..

The egr valve?If so and it was just replaced they cleared the carbon when they changed it.I like to remove the egr and start it for a few seconds then put the new egr valve back on.

ok so i took the egr hose off cleaned the carb and it still wants to stall when u stop at a red light..it only happens at 35 mph or lower..

I thought you said it was running fine now?

it was for about 2 hours and now its doing the same thing lol

Get a hand vacuum pump and make sure the egr valve is holding vacuum and isnt sicking.

ok ill try that and let you know thanks very much

I have a 1995 chevy truck Silverado 305 cu.in. 5.0 liter. The problem i'm having is: The truck starts normal, it idles for about 5-& seconds than it dies out. It has a (DTC) 54 which says is the fuel pump circuit low voltage, or the EGR system. When i turn the key on i could hear the fuel pump go on but it stays way longer then 2 seconds. I have replaced fuel filter, fuel pump, idle air control valve (IAC), cleaned inside the throttle body with throttle body cleaner using a piece of rag on a stick. It starts than it drops to about 2000 rpm's, it shakes than dies out. Your help would be great. Thank you

what is the pressure??? you need to check that first.

Roy

Your welcome also try cleaning it again after testing i like i said.Also with the egr off start it for a few seconds do blow out some carbon.

Sounds like your truck is likely loosing prime. Check your under-hood fuel delivery system by tracing your lines from the fuel filter housing to the CP3. Did you do any work on the truck recently? I had a similar problem and found a loose banjo bolt on the Fuel Injection Control Module (FICM). Look for any wet spots (diesel) around your engine bay, in the engine valley, and on the sides of the block.

okay ive done what you said and im still haveing the same problem..do you think it could be the throttle body?or maybe the map sensor?or even the throttlr body sensor? thanks for your help