Question about 1999 Chevrolet Tahoe

1 Answer

Sputters unde load after warm up

After the Truck is fully warmed up (about 20 min) driving home under load up a hill sputters and drastically drops rpm about 500 to 1000 rpm, changed fuel filter and pump has gotten a little better but still proceeds to chug up the hill. this is at 80km/hreven first gear uphill load seems to do the same thing and when i got into my drive way it sputtered a little in park so i know its not transmission related. any ideas?

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Catilatric connverters

Posted on Apr 20, 2013

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
  • 131 Answers

SOURCE: '99 chevy Silverado Z71,5.3 engine.....will not rev when hot.....

try replacing your EGR Valve, or your Oxygen Sensor

Posted on Feb 10, 2009

lovelle40
  • 26 Answers

SOURCE: 95 chevy truck 4.3 motor has like a miss in high gear after warms

The fault could be in the ingnition module in the dist.I had a car one time that did the same thing but when it was cold,try replacing the the ignition module.

Posted on Jan 02, 2009

Molson02536
  • 3854 Answers

SOURCE: Chevy S10 Pick 1995 - Sputters and almost stalls when accelerating.

You could have a dirty EGR valve, you can re move it from the manifold and clean it with Throttle body cleaner. Might as well buy two cans, since your cleaning the EGR, might as well clean out the throttle body too.
Spray the throttle body cleaner in to the throttle body with the engine running and try to keep it at 1000 rpm and then to 1500 rpm as you clean out the throttle body and let it idle down for 2 min then turn the engine off. Then turn the engine to the run position for 10 seconds and start and let idle, ro for a test drive and hope that solved the problem, if not there a few more things we can do which will consist for tune up.
Note: Clean the EGR first so you don't burn your self since the engine would still be cool before you clean the Throttle body.
Good luck and keep me posted.

Posted on Jun 01, 2009

honeymokey
  • 3113 Answers

SOURCE: 95 caprice is sputtering

Check vacuum hose to map sensor.

Posted on Jun 17, 2009

  • 23 Answers

SOURCE: low oil pressure after engine warms up in 94 blazer with 4.3

I have a 99 blazer and ever since I have owned it, it reads lower in pressure when idling, but will go up too 40 while driving. This is normal for the vehicle. If the pressure gets real low, and stays low, it means its time for an oil change.

As long as the pressure goes up when you give it gas, it is fine.

Posted on Jan 09, 2010

Testimonial: "But why has it started reading low, especialy after the new oil pump was put on. It read a constant 40 even when idling before."

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

2000 tundra v6 5-speed cold start truck runs great, park it for 20-30 min it will start fine but after going 1/4 mile it dies, looses power. pull over and it will backfire and sputter until it eventua


bad need of a tuneup? like new spark plugs, ?
172 , is 02 rich/ lean warning. this one is low oxy for rich.
this code can just be a victim. for sure , with misfire.
means 02 sensor stuck at rich,
what is water temp in engine coolant, at failure? less than 150F?
could be lots of things.
leaking injectors, bad fuel.
injector sticking> causing misfire.
id use a scan tool and watch all sensor when it fails.
too high fuel pressure.
misfires cold, but only luke warm cold starts not fully cold.

just one DTC, no P0300 or 30x misfire codes, not even P0300 pendings?

Jan 31, 2014 | 2000 Toyota Tundra

3 Answers

7.5l MFI/SFI timing (?) problems


Hi, you describe a chugging even on moderate hills, is your transmission shifting properly? It sounds like it's stuck in overdrive. Or a plugged injector or two that maybe push out fuel OK in warm up mode but not after. So if your transmission is downshifting when is should and you still have no power, I would have the injectors checked out. Good luck, chuckb

Apr 06, 2009 | 1994 Ford F250 Supercab

1 Answer

I have a 1996 Honda Accord with 268k miles that sputters at the same timethe speedometer needle fluctuates wildly. But I do have a new Vehicle Speed Sensor. This typically only happens when the engin


I am no Honda expert, but a similar problem happened to my ex sister in-laws Ford Taurus. The speed odometer would jump around and it had trouble shifting (automatic transmission). After driving it I changed out the speed odometer sensor on the transmission and it's been fine ever since. I changed out the sensor because if the cars computer cannot tell how fast the car is traveling then fail safes in place go into effect and the computer will do it's best to keep the cars rpm's down based on the speed indicator and not let it shift or shift properly either. If it's getting false speeds then it will shut down the motor when the speed gets to high and allow it to run as the speeds fall (jumping speed odometer needle). It effects the transmission shift points also. It will either shift erratically or not shift out of say 2nd gear, so that the cars engine can't get damaged based on what signal the speed sensor is sending the computer.

Jan 23, 2014 | 1996 Honda Accord

1 Answer

Truck surges (Vibrates hard) under load when warm.


I would start by changing the trans filter and fluid, and go from there . it could be your overdrive acting up try to drive it in 3 and see if it happens, how many miles are on it ? and sometimes you can lightly apply brake and get o.d. to kick out not sure on yours if that works or not, because if you can get it to kick out then you can diagnoise if it is the culprit ! sounds like it though, at Car Quest Auto they sell additive that is supposed to take care of shuddering in o.d. but can't remember the name of it ...sorry

Aug 22, 2012 | 1997 Chevrolet K1500

1 Answer

1986 Ram 50: Engin and carburator sputter and lose power when g...


i have an 86 dodge ram 50 that sputters when i step on gas going up hill after it warms up ive changed the gasket twice with no luck solving problem it runs fine in neutral but in gear under a load it sputters

May 14, 2010 | 1986 Dodge Ram 50

1 Answer

Sputters and stalls when warmed up___1992 Lesabre


Crank sensor. Next time it shuts off pour or spray some water on it then see if it will crank. If it does replace it.

Nov 13, 2009 | 1992 Buick LeSabre

1 Answer

Fuel pressure intermittently drops causing sputter and die.


check for 12v constant at your fuel pump if you are not getting that replace your relay.
if you are getting 12 volts at your fuel pump the fuel pump is possible to run tuel it gets warm then shut down to a lower rpm I would then replace the fuel pump

Oct 10, 2009 | 1994 Dodge Ram

2 Answers

Sputtering, hard start in moisture


next time it does this, try spraying wD40 on the distributor, all around it. if this fixes it, you have a crack in the distributor cover. just replace it. good luck

Dec 01, 2008 | 2001 Volkswagen Beetle

Not finding what you are looking for?
1999 Chevrolet Tahoe Logo

228 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6918 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...