96 GMC Suburban keeps stalling after 25 miles of driving
The wierdest thing.My 96 Suburban with a 6.2 L V-8 Turbo Diesel engine has 3 times stalled out on me after roughly 25 miles of driving on the highway at a constant speed of 60 mph.No check engine light,no warning lights at all.It will sort of sputter,die momentarily, then sputter on then die completely.It will start back up no problem but the sputtering and dying will persist. I've had these conditions while troubleshooting over the last three days and I am stumped.Any feed back would be appreciated.Thank you.
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Re: 96 GMC Suburban keeps stalling after 25 miles of...
There is air getting into the fuel injection system or fuel starvation, do an engine flush and check the exaust at the manfold, also check the gasgets and glow plugs ( these are like spark plugs but they are for gas cars) if the car stalls when on tic over, say at red light's then check the timing belt
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if this a diesel engine with a controlled shut down after turning the key off, there is no need to extend the idle period as 3 minutes is ample time to allow the turbo to slow down and cool down
understanding how a turbo works is the key to the answer as the turbo is already cooling down and slowing down as you are coming to a stop and the extra 3 minutes is a safety period to complete that process
If you are concerned about a turbo failing then there is an accumulator that can be purchased after market that is fitted to the oil circuit of the turbo
It has a bladder in a case and oil pressure pressurizes that bladder so that when the engine is stopped , that oil is pushed back through the turbo bearings It can be fitted to any turbo engines
it is particularly useful for engines that are subject to stall conditions such as 4wd that are operating in conditions where clutch operations causes the engine to stall
however to answer your question , there may be a small adjustment in the side of the timer box or in the box that can be reset to longer time
however long idling of an engine is not good for the wear factor of the engine
GM used an automatic starting function on the envoys. The engine cranking after you let go of the key is normal operation. Under normal conditions you wouldn't notice it, but because the engine is not starting up immediately, it continues to crank in attempt to start the engine. As far as the engine stalling goes, some basics that come to mind for the envoy are: 1) Is the throttle body dirty? A dirty throttle body can cause stalling at lower engine speeds. 2) Is there a vacuum leak at the engine? A vacuum leak can also cause stalling at lower engine speeds, depending on the severity of the vacuum leak. 3) Has anyone checked the fuel pressure? A fuel pump that's on it's way out can also cause stalling problems.
Sounds like this thing needs some quality diagnosis by a good driveability technician :)
ok and XL 7 but what engine options. gas, diesel, 2L , 2.5L? what? and most important , and never ever 1 time stated on this forum what country. leaping?
im not sure what you are saying. it runs ok cold, and as it warms , the engine. it stalls.? and what does same thing mean.? my guess, it starts fine then stalls; hot. but can you save the stall?
stalling is complex. can be many systems in the car. but can be broken down to : Ever did the 60k mile tune up,ever? if not why not. never skip 60k\'s or the motor will run like garbage.
1: lost electrical power. to EFI . 2: bad engine, in that when it gets hot , it loses compression. 3: lost park. 1 or more cylinders, 4 or 6 you never said. 4: bad injection. 1 or 6 of them, flooding or starving. 5: bad fuel. 6:EGR sticking , usually this happens just before a stop sign. 7: if the stall was a bog and the fast right foot saved the stall, easy the ISC is sticking closed.
Here is the most common cause of surges and stalls and low idle, it is the idle speed control air-bypass valve and throttle valve, they get full of gunk over the miles and cause idle issues (stalls) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.
for the cheapest TEMPORARY solution get some fuel injector cleaner and get on the gas fo about 5 mile at like 100 - 120 miles an hour thats what idid to mine last week hasnt wanted to die out since. good luck.
sorry i did not read its was a diesel i seen lot of diesel with that problem you got a 6.5 liter the part thant broken its a injection driver module its a black box in the begining the truck stall and to a point its stall soonner and soonner julie its not cheap its a bad desing the new module come with some wire its was to close to the engine and the heat kill it