1999 Sterling dump truck A C problems A c blows cold then start

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How I diagnose no crank no start on a big truck (Part 1

My Truck Air conditioner would start out great but then blow warm as I accelerate. Once back to idle, the air got cold again. Then the compressor will not tu

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Loses power after engine get up to temp, runs good cold f

Aug 15, 2016 · on August 15, 2016. Truck runs great cold when it gets up to temp the power decreases greatly. new fuel pump, new fuel filter, new air filter has been hooked up to two different computers and it's showing no codes at all. New muffler and dual pipes,the old ones were bad. im at a loss and so are my mechanics. My car has 84000 miles.

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What is causing my truck to stall during reverse? - 2003

Aug 19, 2009 · Those three injectors will always show a restriction to flow first! Cylinder No. 5 is the pattern failure on 4.9L Ford in-line 6s. (Study the rail design and look for the problem areas.) Clean fuel injectors At this point in the "service," we start the engine and adjust the output pressure somewhat closer to regulator pressure or somewhat lower.

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Recurring Problem with AC - suggestions? | Expedite

How to Troubleshoot A/C Problems in Freightliner Trucks

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a/c blower motor, a/c problems | TruckersReport.com

Jan 15, 2017 · I don't know about your other a/c problems, but I can offer one suggestion if you open it up to change the motor- use air and water to blow out and then flush out your a/c evaporator and heater core. If its never been done, and your truck is an '03, it probably needs it. May not solve the problem, but it could help and it doesn't take long to do.

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CAT 3126 | Expedite Trucking Forums

Nov 30, 2003 · The larger Cat engines and the medium Cummins C 8.3 liter have a liner between the pistons and the block. When a problem occurrs or for a general overhaul the ASCE (lol) mechanic will just disconnet the pistons from the crankshaft and remove the pistons and liners and then install new ones. This can be done without removing the engine from the

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Detroit Diesel Series 60 Common Failures and Problems

Sep 13, 2010 · Sep 6, 2010. #2. If the clutch doesn't engage, it is the clutch itself, or the compressor. The bigger problem is taking it to Freightliner. History has a way of repeating itself. Find an actual A/C technician rather than a parts changer. Trust me when I say, there is a huge difference between the two.

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AIR BRAKE SYSTEM TROUBLESHOOTING

PROBLEM CAUSE REMEDY 1) Dryer is constantly cycling or purging. a. Excessive system leak. b. Defective governor. c. Defective one way valve between air dryer and wet tank. d. Kinked or plugged discharge line. a. Repair air leak. b. Check governor for proper "cut-in," "cut-out" pressure and excessive leakage. Repair or replace governor.

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Navistar Truck Circuit Diagrams

Oct 16, 2000 · Navistar International Truck Circuit Diagrams. PDF Files. Circuit diagrams for Navistar International Truck Models. 4200, 4300, 4400. Built October 16, 2000 to December 31, 2001 CLICK HERE. Circuit diagrams for Navistar International Truck Models. 4200, 4300, 4400, 7300, 7400, 7500, 8500, 8600. Built January 1, 2002 To September 30, 2002 CLICK

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Cat 3126 starter | Heavy Equipment Forums

Dec 01, 2009 · 3126 starting problem. A friend of mine, has a 1999 (?) Sterling/Ford with a Cat 3126 engine. The truck has about 650,000 miles and last week it began having starting issues. When cold, it wont start without ether/starting fluid. I have read somewhere, about this problem…

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Causes of Diesel Engine Overheating | Big Bear Engine Company

May 25, 2017 · Common Engine Problems Due to Overheating. Overheating can cause a number of problems to the engine. Some of the most common problems from overheating are: • An overheated cylinder head can crush the head gasket and restrict coolant flow to the cylinders. • Overheating can cause the camshaft to swell and then break.

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1999 Sterling dump truck. A/C problems. A/c blows cold

Up to20%cash back · 1999 Sterling dump truck. A/C problems. A/c blows cold then start blowing hot. gotta turn off and wait a minute then turn it back in then it blow cold again. Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix. The Heavy Truck Mechanic I'm going to connect you with knows all the tricks and

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CAT 3126 | Expedite Trucking Forums

Oct 25, 2016 · As for airflow problems, my experience has been that it usually is caused by plugged up heater core and a/c evaporator core. Proper fix is to discharge the a/c and remove both the heater core and evaporator core and clean them thoroughly. I'm not talking about inside them, I'm talking about the fins and coils on the outside, where air passes thru.

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Blower motor fix — Ricks Free Auto Repair Advice Ricks

Jan 28, 2017 · In most cases, they start to fail by making a high pitched squeal or screeching noise that indicates the bearing is failing. The squealing noise happens most often in the winter during cold startups and may disappear as the motor heats up. If you ignore the noise, the bearing will continue to wear to the point where the motor won't start at all.

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Troubleshooting Article Archive - Jon Wickham

Here's a guide to troubleshooting backup lights -- which come on almost every tow truck -- and backup alarms, which some jurisdictions require.Backup lights and backup alarms usually run off the same circuit. Stick shift transmission. On tow trucks with stick shift, the backup light switch is usually located on the transmission's top cover opposite the position of reverse on the shifter knob.

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Not much air blowing out the vents. | TruckersReport.com

Troubleshoot Your Truck's A/C System - LiveAbout

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Where the heck is the AC thermostat? | TruckersReport.com

Jul 25, 2017 · (1) Stop blowing cold air; lately with ambient temp in the 90*s, it will blow about 60-70* out of center dash vent sometimes, sometimes it will blow hot air. Normal is 47-49* in center vent. (2) At that time, the AC blower fan will barely push air out the vents.

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Why Does My Car Air Conditioner Blow Cold Then Warm

May 28, 2018 · A small refrigerant leak is the most common reason a car's A/C gradually loses its cool. A leak is typically caused by a mixture of moisture and refrigerant that, when combined, creates a corrosive acid that eats away at seals, valves, and hoses in the A/C system. A leak in your A/C system could be causing the unit to blow warm air, since there

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A/C not cooling | TruckersReport.com Trucking Forum | #1

Aug 07, 2013 · Well, when I first got my truck the A/C would blow pretty dang cold at idle during the day. Now, only 3 months later, it blows warm/barely cool air at idle and when I'm driving down the road It still only blows cool air, nothing nearly as cold as it used too.

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Troubleshoot Your Truck's A/C System - LiveAbout

May 25, 2019 · A/C Parts Under the Hood . Drive Belt: A drive belt makes your truck's air conditioning compressor turn, which keeps the cooling refrigerant circulating through the system.When the belt is worn, stretched or cracked it can slip or break, stopping the compressor and shutting down the A/C. Check the belt periodically to make sure it's in good shape.

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