Question about GMC Blazer

1 Answer

When it gets hot outside, above 80 normally, and ecpecially when I run the air conditioning,it bogs down when you try to go in passing gear, and only runs at half a peddle I just replaced fuel pump and fuel filter.when it is cool in the morning it runs great.

Posted by on


1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that gotĀ 5 achievements.


    An expert whose answer gotĀ voted for 20 times.


    An expert who has answered 20 questions.

  • Contributor
  • 20 Answers

You may have computer sensor problems. Humidity and temperature of air affect fuel regulation controls in moden engines. Cool morning to hot afternoon and system still thinking it is cool thus engine has very poor performance. This vehicle has what is called a driveability issue and is ususally a bear to figure out without the proper scanning equipment.

Posted on Aug 03, 2008


1 Suggested Answer

  • 2 Answers

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

a 6ya Mechanic 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 repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Gets hot and runs very rough when idling as if its about to stall, cools down as I drive.

Check that the cooling fan is working of if you have a viscous fan hub check that it is operational. Electric fans should be working at around 80 degrees C and just because the viscous fan is spinning doesn't mean that it is driving to pass enough air through the radiator. The statement "it cools down when I drive" is a clear indicator that there is no air passing through the radiator at idle and by driving- the air is being forced through the radiator so it is cooling down

Sep 06, 2013 | 1995 Toyota Camry

1 Answer

When the car is at operating temperature and the outside temperature is hot the car will not start

The car is obviously itself running at an above average tempareture thus adding to the effect of the outside tempareture having an influence because their is not enough cool air outside to cool down the engine fast enough and probably one or two electronic components are being affected by the intense heat as heat is a major problem in all electronic components causing them to break down, especially within a hot engine compartment of a motor vehicle.Contraction and expansion is what causes the fluctuation within the component's performance.This could very likely be an erratic electronic contact, and in the event of a carburettor model could also be a hot mechanical fuel pump. Try pouring water at a slow rate over the various components like the electronic module, some of the sensors on the engine, Hold a cool wet rag over the airflow meter, and place a cool wet rag around the distributor, the coil, etc.Sometimes even a hot relay switch can be a headache.As you go along try starting the car again after each cooling session on the various components and you will eventually find out which one is the problem. Good luck.

Apr 15, 2013 | 1999 Chrysler 300M

2 Answers

When i press my gas pedal the car bogs down. 2005 stratus 2.4l

PLEASE HELP BECAUSE MY CAR TIP OPEL CORSA C 1.7 diesel 2003 has problems when I am driving the car occasionally it without my desire if I leg lifts from pedal of gas and this problem occasionally JEPbut not when I add the speed above 80 km per hour WHERE MND PLEASE BE PROBLEM THANKS

Apr 23, 2012 | 2005 Dodge Stratus

1 Answer

Have a 2000 honda passport its bogging down when you give it gas its starting to do it all the time so u cannot pass any one cause it boggs down nd you dont have enough power to pass

Have you tried replacing the fuel filter? Bogging down is such a generic discription that it could mean with your AC on or off; whether the vehicle is running hot; etc. So I will have to go with the most common reasons which is fuel filter and fuel pump; followed by fouled plugs and plug wires.

Jun 30, 2011 | 2000 Honda Passport

2 Answers

Loss of power. Won't go faster than 80 k's/hr. Rev's fine and turbo is sucking air from outside fine. Motor has only done 150000 kms incl. the turbo. Problem started all of a sudden.

Seems like you getting Safe mode.Meaning that the cars computer (ECU) has detected a fault from one of your sensors.Try disconnecting the plug to your MAF air flow sensor.If car is ok,then its the MAF.
But still have the car diagnosed ..and its under warranty anyway.

Feb 19, 2011 | 2010 Mercedes-Benz Sprinter

2 Answers

Hard to start.When running,Will "bog"out when

You may have a fuel issue the cheapest thing to do is a simple fuel filter replacement an old filter can cause backups in the gas line. Also check to make sure your air cleaner assembly is fully hooked up and no hoses or clamps are loose. less air cause these same symptoms.

Jan 28, 2011 | 1993 Ford Explorer Limited

4 Answers

2006 Dodge Sprinter 3500 overheating

215f is NOT hot, 250f is. take a tech with a scanner on a ride with you. and verify if the gauge is lying or not. I know of a Excellent Garage near Dryden if you are near there?

Apr 22, 2010 | 2006 Dodge Sprinter

1 Answer

Bogs down when shifts into 3rd gear and speed levels out

there are several possibilities. by bogging down do you mean the engine runs smooth but looses power? or does the engine/car start shaking and doesnt want to go any faster? if the engine runs smooth and doesnt seem to be shaking...can you hear a noise from the engine compartment? or a hi pressure noise from the rear of the vehicle - like a vacuum cleaner? if so then you probably have a plugged catalytic converter. if the engine seems to shake the van and looses power until you let up on the throttle slightly then you have a misfiring condition which can be caused by bad plug wires,plugs or a coil breaking down. as you shift up in gears the spark needed to each cylinder is increased and if you have bad plugs,wires or coil the spark wont get to the cylinder when it is needed. see if any of this sounds similar to your condition and request more info from me if ya like. good luck. carefull the converter can cause a fire if it gets too hot!

Dec 30, 2009 | 1993 Pontiac Trans Sport

2 Answers

I have a 2001 Tahoe and the a/c quits working in hot climates.

You need to vaccum the system down and recharge. You can rent the tools from autozone for a deposit thats fully refundable. Its very easy, if you are mechanicialy inclined.
It dosent hurt to replace your dryer and expansion valve. Hope this helps.

Jun 05, 2009 | 2001 Chevrolet Tahoe

2 Answers

Engine bog down

check for clogged catalytic converter

Oct 29, 2008 | 1999 GMC Sonoma

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

267 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts


Level 3 Expert

77544 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

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

Answer questions

Manuals & User Guides