Questions tagged [truck]

A light, medium, or heavy duty vehicle often used for transporting goods. Frequently used to refer to consumer pickup trucks (light duty), but can also refer to large panel vans and diesel utility trucks (medium duty), and large 3-axle diesel trucks (heavy duty, aka lorry, big-rigs, semi-trucks).

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1answer
39 views

Lifted Ford F-150 Shaking Horribly at 70+ mph

So I have a 6” lift on my 2010 Ford F-150 platinum. I have 35” Nitto ridge grapplers with some Moto metal rims. I just got my alignment checked out, tires rotated and one tire rebalanced. My truck ...
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24 views

0v across CAN bus lines

I am trying to connect to the CAN bus of a heavy trucks 24V OBD2 port. I have already tested my setup with a van, and confirmed it working. The only differences I can see between the 2 vehicle's ...
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2answers
89 views

Electrical question - solar panels and kill switches

I have an old truck and I don't drive it much. I've hooked up a 1.5v solar charger to the battery to keep it fresh. It's working well, but when I do drive it I need to unplug the solar panel or risk ...
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1answer
30 views

Oil change on isuzu box truck

My husband changed the oil on his isuzu box truck and he says he did eveything exactly as he was suppose to but this morning he got up and drove it and it went into regin and then he seen alot of ...
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1answer
33 views

Truck takes a lot of tries to start

Bare with me. I don't know much about vehicles. My 2004 Dodge Dakota takes like 10-20 tries to start in the morning. During all the failed tries, I only hear a click each time (that means it's not ...
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67 views

Why do I keep having to replace my starter?

I have a 1996 Chevy c1500 w/t v6 Vortec & I replaced the starter & flywheel & it ran for a couple months then the starter stopped hitting the flywheel (it just sounded like it was spinning)...
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29 views

Would you replace an EGR or hose down the existing one with throttle body cleaner?

I realize that some of this can be botttled down to 'how much down-time is it worth to me' or 'what is the fastest way to fix a faulty EGR' but that isn't my question. I can handle a day or two of ...
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17 views

Alarm horn pulse too short for horn relay, horn sometimes doesn't blow

I just recently installed an aftermarket alarm on a 2002 ram 1500. The alarm is an Avital 3100lx. When testing the lock and unlock functions I noticed that sometimes the horn would not work when ...
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29 views

Center support and bearing replacement [closed]

My 1980 Plymouth Arrow truck engine and transmission have been changed to a Nissan Z24 engine with manual transmission. My question is I ordered the center support bearing for a Plymouth Arrow Truck. ...
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1answer
1k views

No pressure in clutch after bleeding the system

I have a 1992 GMC C2500. When I got it there was no pressure at all in the clutch. I bleed it from the bleed valve for about 20 minutes to make sure there was no more air bubbles coming out. After all ...
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18 views

My bronco is having transmission issues

I have a 1996 full-size bronco with a 351W and an E4OD trans. I’m having to tach up to or past 3k rpm it to shift. It does way better in higher gears and reverse. Also, when i drop it into 1st and 2nd ...
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1answer
52 views

Tire chains appear to touch suspension components?

Years ago I bought some chains for my truck (2005 Tacoma 4x4) just in case I'd ever need them. I have tires sized 265/65-17 and I have confirmed that these chains are intended to fit that size tire. ...
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46 views

Big clunk/thunk when stopping fully

This problem started about a month ago. Just got back from traveling for the holidays and have to resolve this problem ASAP. Sometimes, but not always, the truck will clunk or thud hard when going ...
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1answer
103 views

Transmission is slow to engage

I have a 1988 GMC Sierra 4x4 truck, and I recently bought a rebuilt NV3500 transmission from a 1995 chevy truck (I picked this year, because from 1993 onward, this particular transmission used a ...
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732 views

Manual transmission grinds shifting into 2nd gear, only when cold

I have a 1995 Chevy K1500 pickup, V8 5.0L engine. The 5-speed manual transmission was rebuilt about 10 years ago. Recently, I’ve noticed that when the vehicle is cold, I get a grinding noise from ...
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4k views

Starter motor spins but engine does not crank

I have an intermittent starter problem on my 95 Chevy K1500 pickup truck. When I turn the ignition, I hear the starter motor spinning but the engine does not turn over. If I put the truck in gear ...
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1answer
33 views

Why doesn’t my truck crank up after I changed the starter,neutral safety switch and starter relay?

I had my truck stored away for about a year and the battery went bad so I changed it,but the truck didn’t crank until I put it on neutral or sometimes it would start on park.Today I had the neutral ...
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34 views

2010 toyota tacoma AC not working

Blower motor is brand new, tried a replacement just in case and it still did not work. I've got a new diffuser on the wire harness. Lights come on for the ac when I turn the knob on the dash, but the ...
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29 views

Trucks fuel economy dependence on weather

I am searching scientific data and studies on the link between weather and fuel consumption in HDV (heavy duty trucks). For now I have found almost nothing. Can anyone help?
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2answers
376 views

What is a through-drive axle? and what is an interaxle differential?

While reading the 'Mercedes Truck Front Axle Systems' (https://www.mercedes-benz.com/en/mercedes-benz/vehicles/aggregates/powertrain-trucks-front-axle-systems/) I was confused as to what a 'through-...
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2answers
177 views

Chains hanging from rear axle of trucks

I often see trucks (school buses, ambulances, sometimes dump trucks) which have metal chains hanging off the rear axle, on either side of the differential. What are these for?
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1answer
931 views

AC Compressor runs for 45 mins and shuts off

This is on a 1997 Chevy C2500 with a 5.7L. It has a new AC compressor, AC condenser, AC Manifold hoses (suction and discharge). After an evacuate and recharge, the AC blows ice cold for about 45 mins (...
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55 views

What’s causing my truck to jerk and rpms to go up and gown

Okay so I have a 1996 Chevy 1500 pickup. When I’m going down the highway and get to 45mph or so my rpm will start to jump up and down and the truck starts to jerk. My speedometer also will drop and go ...
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73 views

Truck's exhaust temperature: how to read EGT sensor by ODB / FMS / Can-bus?

I succesfully decoded can-bus data from a VW Caddy, but know nothing about OBD and trucks. For a research I need now to read a truck's exhaust temperature (EGT sensor), possibly by OBD. I would ...
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5answers
19k views

Should I over- or under-inflate my tires when towing?

We're about to take a trip across the country towing 5000lb (2300kg) with our SUV. It's rated for 9k, so I'm not worried about that, but I'd like to know how much to inflate my tires. Advice on the ...
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2answers
608 views

What causes rear axle shaft breakages in heavily loaded trucks on uphill shifts?

Where I come from the ISUZU FSR 33H is the preferred truck for transporting heavy construction materials. The truck is capable of hauling loads in the order of 6 to 7 tonnes. However I cannot help but ...
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59 views

faint white smoke, burning smell and poor acceleration

I have a 1998 V8 5.7 Chevy Silverado C1500 RWD, my problem is I did have a small wreck in this truck and have been replacing parts on it, I hit a ditch and the right front tire hit a metal culvert ...
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30 views

Plow Truck was working great but after 20 minutes it began to smoke, stalled and now will crank but will not start [duplicate]

My plow truck is a 4.3 1991 Blazer, it was working great but after 20 minutes or so it began to smoke, then stalled out and now it will crank but will not start. The oil, transmission (auto) fluid, ...
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1answer
224 views

Why did the Tesla truck have a centre mounted steering wheel? Are there any advantages to such a system?

I asked this question on a trucking forum and the general consensus was that it would make backing up much harder. Does it eliminate any sort of blind spots?
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676 views

Clutch pedal won't go to the floor to engage neutral safety switch

This is a 1993 K1500 Sierra 4x4. I just replaced the clutch master and slave cylinders and bled the line. The clutch has pressure but it won't go all the way down to engage the neutral safety switch....
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2answers
2k views

Why Don't Medium Duty and Heavy Duty Trucks require Airbags?

Why Don't Medium Duty and Heavy Duty Trucks require Airbags? According to GSO 42 regulation, Passenger Cars, MPV, Trucks or Buses with GVW less than 3500Kg requires an airbag, while for MDT & HDT ...
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2answers
2k views

What do I make a custom box truck body out of?

I'm working on a box vehicle conversion project, and I need to replace the main body. It looks like the original method was steel frame, plywood on top of that, and large sheets of galvanized steel ...
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2answers
1k views

Truck Cap Lighting and Wiring - Can I splice two ground wires together, connect to one ground?

I have a new truck bed cap. I need to wire the cap's dome light and third brake light. As such, the cap has four wires (supply to dome, ground from dome, supply to brake light, ground from brake light)...
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71 views

Truck fleet monitoring project

I need to design a truck fleet monitoring system and make a prototype of it during my traineeship this year. I've been looking into the different buse networks that are already implemented in trucks ...
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117 views

Why does Actors truck has oil in the radiator?

Actros V6 engine. There is engine oil in the radiator, but no water in engine oil. I have replaced the oil cooler, but the oil is there again. Then I changed the head gaskets and check the head, but ...
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2answers
3k views

Heavy Truck OBD2 diffrent from Car OBD2?

My problem: I try to read data’s from Heavy trucks(40Tonns) via OBD2. This is needed for a research project. I have already read many articles about OBD2 and interfaces for OBD2 like about the ELM ...
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0answers
439 views

What limits the max power rating of a V belt drive?

We know that belt drives are limited in their max possible power rating and most high power/torque applications(trucks) use gear drives. I wanted to know the main factor that limits the power/torque ...
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2answers
481 views

Is this a headlamp housing or a headlight bracket?

I have a 2015 Ram 1500 Crew Cab Sport 4WD. Something on or near the driver side headlamp is broken: The dealership is quoting me $600 to fix this broken piece of plastic, so I want to search ...
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1answer
2k views

Difference between Trophy Truck and Hammer Truck?

I just saw the video: https://youtu.be/i85ya5wpTzA In Baja 1000, of the many vehicles competing, there are two which interested me, mainly Trophy Truck and Hammer Truck ... What is the difference ...
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1answer
116 views

Where to attach ball hitch on 1989 10ft former U-Haul truck?

I have a 1989 Toyota 10 ft box truck that was a U-haul in a former life. I would like to attach a 2 inch ball hitch to the rear. Problem is, this is a low step loading configuration where there ...
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1answer
68 views

How widesread are truck ALS systems today?

Talking specifically about such non-exotic vehicles as long distance semi-trucks, city buses etc., what is the today's de-facto standard with regard to availability of Automatic Lubrication Systems on ...
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2answers
14k views

What does this symbol on my dash mean? GMC W4500

The light can be switched on or off by operation of the stem on the right of the steering wheel, the same control that operates the windshield wipers. I can't detect any difference whether it is on ...
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1answer
270 views

Starter or engine?

After 15 minutes of going 20 mph, I shut off for a layover, and my truck suddenly would not start. 1980 Chevy 350 V8, carbureted, no computer. Turn the key, no "clunk", no whizzzz, voltage dips ...
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2answers
62 views

why does my truck shake when I go 35 miles an hour down the road?

I am running 38s on my Toyota 1984 and I think it shakes because i mean i am running 38's on a Toyota but also that maybe they are out of alignment or that they are just low but im not sure...
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30 views

2005 ford sportrac

Overheated and found that I had no coolant. Engine cool filled radiator and reservior to Max line with water. It has been insanely hot in California I might add. Drove home 90 miles and next day drove ...
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55 views

94 Chevy k1500 abs/brake light coming on/off

Well my battery went out today and I replaced it.. upon running the truck after this..I have an abs/ebrake light. Pulled the ebrake back it went out..put my foot on the brake it came back. Pushing on ...
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28 views

Truck only miss fires when it gets up to temp

07 GMC Sierra 1500 5.3 engine - it radom misfires after it warms up. I have changed 1 coil pack, map sensor, plugs, and wires. It only does it after warming up to temperature. What might be the issue.
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394 views

Wish to understand why non-stock vehicle alignment is an issue

I just replaced all of my suspension components (Shocks, Springs, Hangers, Shackles) on my Ford Excursion with that of an F350 + a few modifications to make the rake appear level. I also have slightly ...
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51 views

Which 4 wheel drive to use to pull boat out of harbor? [closed]

I didn't see this asked so thought why not since I'm stuck on which to use. When pulling a 15ft or more boat out of the harbor while your truck is on the ramp partially in the water and connected to ...
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2answers
86 views

“Revenge of the Tree” - A plastic insurance policy? [closed]

Just watched a video of a guy with a line and hook attached to the back of his four runner and a stump he was trying to pull out with it, which slipped off on a tug that sprung the line and the hook ...