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Ford
Escape 2011

2011 Ford Escape Fuel Fill Intake Code Returning After Replacement

Fuel fill intake throwing a code again after getting it swapped a few years ago

Diagnosis
Jeep
Wrangler TJ 2.5L 2000

2000 Jeep Wrangler TJ 2.5L Turbo Addition and Upgrade Options

CAn i add a turbo and what other upgrades can i make

Upgrade
Jeep
TJ Wrangler 2000

2000 Jeep TJ Wrangler Engine Upgrade: Can I Add a Turbo?

Want to upgrade the engine can i put a turbo

Upgrade
Ford
f-150 2019

2019 Ford F-150 Rough Transmission Shifts When Cold

When the truck is cold, the transmission shifts roughly. Sometimes searching for gears

Diagnosis
Mercedes-Benz
e320 1999

1999 Mercedes-Benz E320 Trunk Won't Open Despite New Actuator

215,000 miles. Trunk doesn't open with all of the other locks. I've replaced the actuator, but that didn't fix the problem.

Diagnosis
Ford
Maverick Hybrid 2024

2024 Ford Maverick Hybrid Upgrade Ideas for Enhanced Performance

upgrade ideas

Upgrade
Toyota
Tacoma 4.0L 2013

2013 Toyota Tacoma 4.0L Aggressive Exhaust Options Explained

What's an aggressive exhaust for my Tacoma?

Upgrade
Jeep
Grand Cherokee 2014

2014 Jeep Grand Cherokee Brake Pad Issue Causing Burnt Rubber Smell

200,000 miles. I had some squeking noise and brought the car to the mechanic 6 months ago. They said one of the two front brake pads were very worn, but the other was in good shape. They thought this was strange, and tested the brake line and everything seemed to be working fine. They replaced both brake pads. Now, about once in every 5 times driving I smell burnt rubber and the Jeep seems to slow down as if it's braking when I take my foot of the gas. This doesn't happen everytime.

Diagnosis
Audi
S8 2016

2016 Audi S8 wiring issues causing multiple codes and sensor failures

I have multiple codes(03123, u111300, 01543, 01625, 02638, b10a929), and the backup camera, acc, automatic braking, and parking sensors are not working. Where should I look for issues with the wiring?

Diagnosis
Ford
F150 2018

2018 Ford F150 Largest Tires Fit With Leveling Kit & 16in Wheels

What are the largest tires that will fit with a living kit and stock 16” wheels

Upgrade
Ford
F350 2020

2020 Ford F350 Mirrors Only Fold in When Raining, Button Issue

My mirrors only fold in when it's raining out. The auto fold feature still works but I can not trigger them to fold or unfold with the button on the door

Diagnosis
Chevrolet
Silverado 2016

2016 Chevrolet Silverado 5.3 Idle Drops and Whining Noise in Drive

I have a 2016 Silverado 5.3. In Park/Neutral it idles fine. When I put it in Drive/Reverse and hold the brake, idle drops to about 300–400 rpm and I hear a whining noise. As soon as I start driving or even just let off the brake so it creeps, idle returns to normal and the whine stops. Throttle body was cleaned and relearned. Unplugging the MAF makes it stall. No check engine light and no codes.

Diagnosis
Toyota
Tacoma 2023

2023 Toyota Tacoma TRD Sport Clank Noise When Shifting on Incline

I have a 2023 TRD Sport. After it’s been parked for a while, I hear a single clank from the front driver side right when I shift into Drive or Reverse and release the brake to start moving, especially if I’m parked on an incline. Once I’m driving, everything feels normal—no vibration, no steering looseness, no other noises. It doesn’t happen when taking off from a stoplight.

Diagnosis
Ford
F-150 2015

2015 Ford F-150 IWE Noise Grinding Under Light Acceleration

I have a 2015 F-150 4x4 with IWE noise. Under light, steady acceleration I hear grinding/clicking like the front hubs are trying to engage. It doesn’t do it with hard acceleration. I replaced the IWE check valve and it helped a bit but still happens. It got noticeably worse after I replaced a front wheel bearing—before it only happened after 2–3 hours highway, now it happens sooner. 4x4 engages and works fine, no warning lights.

Diagnosis
Toyota
Tundra 2000

2000 Toyota Tundra 4.7 Loses Power When Mashing Gas Quickly

My 2000 Tundra 4.7 loses power if I mash the gas fast, but it’s fine if I roll into it. I cleaned the throttle body and replaced the MAF. If I spray MAF cleaner on it, it works great for a day or two, then comes back.

Diagnosis
Ford
f150 fx4 2005

2005 Ford F-150 FX4 AC Blower Fan Only Works on High Speed

I have a 2005 F-150 FX4 with an ac blower fan that only work on the high speed setting.

Diagnosis
Subaru
Crosstrek 2024

2024 Subaru Crosstrek Wiper Upgrade: Improve Your Stock Wipers

My stock windshield wipers suck. What's a good upgrade?

Upgrade
Toyota
4 runner 3.4l 2023

2023 Toyota 4Runner 3.4L Oil Change Guide and Tips

I need to do an oil change.

Maintenance
Chevrolet
Silverado 5.3l V8 2007

2007 Chevrolet Silverado 5.3L V8 Misfire and No Start Issues

I have a 2007 Chevrolet Silverado with a 5.3l V8. Started misfiring while driving down the highway. No start condition after turning off. Occasionally it will start but very rough idle with misfires. Initially had a P0320 code. Also noted misfires in 2,3 and 7. Replaced the camshaft and crankshaft position sensors. I also moved ignition coils around from cylinders not misfiring. No improvement. Now have a P0230, P0300, and P0106. Same condition. I tested the fuel pump relay with a OBD device and could hear the fuel pump acitvate. I know the fuel pump has been replaced within the last 2 years. I am not too familiar with fuel issues and diagnosing them. I wouldn’t think injectors would go bad in 3 cylinders at once. Maybe fuel delivery. To me it’s weird why that combination of cylinders would misfire. I am spiraling and think maybe I have a bad lifter failure but I wanted to try and rule everything else out first.

Diagnosis
Chrysler
Town & Country 2008

2008 Chrysler Town & Country Heater Warm on Low, Cool on High Fan Speed

I have a 2008 Chrysler Town & Country. The heat is warm on low fan speed, but it turns cool when I increase the blower speed. I replaced the thermostat and the climate control. AC works and blows very cold, and switching between heat and AC works. The heater core has been checked.

Diagnosis
Audi
A4 2.0T 2006

2006 Audi A4 2.0T stalls and won’t restart when hot after driving

I’ve got a 2006 Audi A4 2.0T. It runs fine until I drive about an hour, shut it off, then restart to leave. It starts, but as soon as I pull away it stalls and won’t restart until it cools down. I’ve replaced the in-tank fuel pump, PCV valve, and crankshaft position sensor, but it’s still happening.

Diagnosis
Ram
1500 Bighorn 5.7L V8 2015

2015 Ram 1500 Bighorn 5.7L V8 Tire Options for 2.5 Level Kit

More aggressive size tires for a 2.5 level kit

Upgrade
Jeep
Wrangler 2003

2003 Jeep Wrangler Lift Drop: 4-Inch to 2.5-Inch Lift Parts & Tires

I have a 2003 Wrangler Rubicon with a 4-inch lift, stock wheels, and 33-inch tires. If I drop down to a 2.5-inch lift, do I only need different springs and shocks, or will I also need things like track bars, control arms, and other parts? And can I still run 33s with a 2.5-inch lift?

Upgrade
Jeep
Wrangler TJ 2006

2006 Jeep Wrangler TJ Speedometer Not Working After NP231 Gear Swap

I need some input. I swapped the NP231 speedometer drive gear from a 34-tooth to a 31-tooth for my new 33” tires. I’m pretty sure it’s installed right, but now the speedometer doesn’t read anything at all—it doesn’t move. I tried clocking the housing both clockwise and counterclockwise and wiggling it. When I install it, I don’t feel the gear “engage” the transfer case shaft like people describe. It worked perfectly until the moment I swapped it. Now the old 34-tooth gear doesn’t work either. It’s a 2006 TJ. Everything is cleaned and the sensor seems to spin freely, so I’m wondering if the sensor magically died. I didn’t change the O-ring; it fits snug, and RockAuto didn’t include one and won’t ship one to Germany.

Diagnosis
Jeep
Wrangler 2014

2014 Jeep Wrangler Code P0480 Set When Hot at Idle - Relay Location Confusion

Code p0480 set after getting hot at idle. Conflicting information on relay location

Diagnosis
Dodge
Ram 1500 5.7 Hemi 2015

2015 Dodge Ram 1500 5.7 Hemi Headlights Not Working After Engine Install

2015 5.7 Hemi. After a new engine install, my headlights don’t work. I think it’s a ground because when I use the turn signal the headlight flashes. I’ve searched all day but can’t find it. Where should I look? I’d rather not take it back to the shop.

Diagnosis
Nissan
Altima 2011

2011 Nissan Altima Check Engine Light On After MAF Replacement

Hi, I’m trying to fix my 2011 Nissan Altima without spending a ton. The check engine light has been on. A scan says Mass Air Flow sensor. I replaced the MAF (it’s only 2–3 years old). What should I check or replace next?

Diagnosis
BMW
328xi wagon 2016

2016 BMW 328xi Wagon Electrical Issue Causes CarPlay Screen Freeze

Very curious electrical issue. 2016 328ix Wagon. My aftermarket carplay screen from bimmerdirect freezes then totally bricks when I hit higher RPMs (5k+). I've swapped the screens already and same issue. slowly ramping up the rpms doesn't seem to effect it as much as hammering the throttle which will guarantee a frozen screen.

Diagnosis
Jeep
Wrangler 3.6 2014

2014 Jeep Wrangler 3.6 P0480 Fan 1 Control Circuit Issue Help

I’ve got a P0480 on my 2014 Wrangler 3.6 (Fan 1 control circuit). Fuse checks out. Fan does cycle on/off, but it doesn’t come on until about 220°F. No overheating. I can clear the code, but it returns almost right away. I found a good write-up but still can’t fix it—any ideas?

Diagnosis
Toyota
Tacoma 2014

2014 Toyota Tacoma Front End Feels Loose and Wanders on Freeway

I’ve got a 2014 (2nd gen) Tacoma with 110k. On the freeway the front end feels loose and wanders like the wheels are all over. I have to fight the steering to keep it straight, and if I hit a bump it shoots left or right. Doesn’t feel like a simple alignment. Where should I start?”

Diagnosis
Honda
Pilot 2020

2020 Honda Pilot P0430 Code Returns at 95k Miles Issue

2020 Honda Pilot, 95k miles. I saw a pending P0430 on my scanner this morning. I cleared codes last week and all monitors are ready except EVAP. Now the P0430 is back, still no check-engine light yet, but I expect it soon.

Diagnosis
Toyota
Tacoma TRD Off-road 2019

2019 Toyota Tacoma TRD Off-Road First Upgrade Ideas Around $200

I just bought a 2019 Toyota Tacoma TRD Off-Road. What should my first upgrade be around $200.

Upgrade
Dodge
Ram 1500 2019

2019 Dodge Ram 1500 Laramie Tailgate Not Consistently Lowering Fix

2019 Laramie, the tailgate activates but doesn't consistently go down. What's the fix?

Maintenance
Dodge
Ram 1500 5.7 Hemi 2014

2014 Dodge Ram 1500 5.7 Hemi Low Oil Pressure Issue Explained

I have low oil pressure in my 2014 5.7 Hemi. About 30 pounds while driving and it doesn't change much.

Diagnosis
Ram
1500 big horn 2025

2025 Ram 1500 Big Horn Performance and Exhaust Upgrade Tips

I do want upgrade the performance on my truck give more power and also upgrade the exhaust system sound

Upgrade
Toyota
Tacoma 2013

2013 Toyota Tacoma Suspension Upgrade: Bilstein vs Old Man Emu

I have a 2013 Toyota Tacoma TRD Sport Double Cab and I’m getting an ARB winch bumper installed soon. Since the added front weight will affect ride height and handling, I want to upgrade the suspension to match. I’m deciding between Bilstein and Old Man Emu (OME). Which setup is the better choice for a Tacoma with an ARB winch bumper, and why (ride quality, load support, durability, and overall performance)?

Upgrade
Toyota
Tacoma 2018

2018 Toyota Tacoma Suspension Upgrade for Better Ride Quality at Stock Height

I have a 2018 Toyota Tacoma and I’m looking to upgrade the suspension for better ride quality and performance without lifting the truck. I want to stay at (or very close to) stock ride height, but improve damping/handling compared to the factory setup. What suspension/shock options work well for a stock-height Tacoma, and what should I consider when upgrading without adding lift?

Upgrade
Dodge
Ram 1500 Big Horn 2020

2020 Dodge Ram 1500 Big Horn Leveling Kit & Tire Fitment Advice

I have a 2020 Ram 1500 Big Horn and I want a clean, aggressive stance upgrade without rubbing. I’m planning to add a leveling kit, wheel spacers, and run 305/55R20 tires on the stock 20” wheels. What’s the largest tire size I can realistically run with a level and still avoid rubbing? Should I go with a 2” or 2.5” leveling kit, and what brands are recommended for reliability and ride quality? For the stock 20s, what spacer size is typically best to avoid upper control arm (UCA) rub while still getting a good stance? I’m looking for the best setup to do it right the first time.

Upgrade
GMC
Sierra 1500 2020

2020 GMC Sierra 1500 Lift and Tire Fitment with Mud Flaps Issue

I have a GMC Sierra 1500 Crew Cab and I’m installing a Rough Country 3.5” lift (shocks/struts) along with their forged upper control arms. I’m also upgrading tires and I’m seeing conflicting fitment info. I don’t want to remove the mud flaps. Can I run 285/65R20 with this lift and keep the mud flaps without rubbing? If not, is 275/65R20 the safer option? What are the common rubbing points or checks I should do with this setup?

Upgrade
Toyota
Tacoma 2018

2018 Toyota Tacoma Largest Tire Size with Method MR301 Wheels & Bilstein 5100

I have a 2018 Toyota Tacoma and I’m trying to figure out the largest tire size I can run without rubbing with my current setup: Method MR301 wheels (17x9, -12mm offset) and a Bilstein 5100 front leveling kit (front only). I’m currently on 265/70R17 and want to go bigger. For this exact wheel offset and front level, what tire sizes are most likely to fit with no rubbing, and are there any common clearance issues I should check?

Upgrade
Audi
S4 2006

2006 Audi S4 P0346 Code After Timing and Sensor Replacement

I have a 2006 Audi S4 (4.2L V8) and I’m getting code P0346. I tore into the engine because of the code and found Bank 2 timing was off, so I corrected the timing and, while I was in there, replaced the cam adjusters and the VVT solenoids. After reassembly, the car starts but it immediately sets the same P0346 code, as if nothing changed. I’ve checked continuity from the cam sensor to the ECU, and I’ve replaced the camshaft position sensor twice with no change. I’m looking for the most likely remaining causes and the best diagnostic steps to figure out why P0346 is still coming back after correcting Bank 2 timing and replacing those parts.

Diagnosis
Ford
F350 2004

2004 Ford F350 6.0 Powerstroke Hard Start and Hot No-Start Issue

I have a late-2004 Ford F-350 6.0 Powerstroke and I’m stuck chasing a hard start / hot no-start that has turned into an intermittent no-start. About two months ago it started hard-starting, so I changed the oil and filter using a new OEM filter and cap. A month later it developed a hot no-start. Since then I’ve replaced the stand pipes and dummy plugs, installed a new ICP sensor and wiring, and installed a new OEM IPR valve and wiring. I bled the air out of the oil rails and it ran fine for about 25 miles, but after sitting for 12 hours it wouldn’t start. I then found the oil return tube in the oil filter housing was broken, replaced it, and installed new batteries. It eventually started and ran perfectly for another 25 miles. After parking at home, it restarted once (after 10–15 seconds of cranking) and briefly ran like it had a misfire, then smoothed out. After shutting it off again, it now won’t start at all. Current data/notes: During cranking, IPR duty cycle shoots to ~84% ICP voltage KOEO is ~0.25V While cranking: ICP pressure is ~150 PSI hot, and ~400–490 PSI cold after sitting The low-pressure oil pump appears to build pressure, but not enough to fire Brand new FICM installed ~3 weeks ago; FICM shows 48V (main) I air-checked both the IPR and ICP ports with shop air and didn’t hear any obvious leaks I’m trying to avoid throwing more parts at it. Based on these symptoms and readings, what are the most likely causes and the best next diagnostic steps for a 6.0 that cranks but won’t start, with high IPR % and low ICP pressure?

Diagnosis
Toyota
Tacoma TRD Offroad 2021

2021 Toyota Tacoma TRD Offroad Suspension Lift and Leveling Kit Guide

I want a suspension lift and leveling kit

Upgrade
Chevrolet
silverado 2024

2024 Chevrolet Silverado Larger Wheels Upgrade Guide

Larger wheels

Upgrade
Ford
F150 2012

2012 Ford F150 Ecoboost Timing Chain Replacement Guide

How to replace the timing chain on a 2012 Ford F150 Ecoboost?

Maintenance
Audi
Q7 3.0 TDI 2013

2013 Audi Q7 3.0 TDI Limp Mode and Fuel Pressure Drop Issue

I have a 2013 Audi Q7 3.0 TDI with about 151k miles. It had been sitting for roughly 2 years. After draining/using up the old diesel, it started and initially ran fine. Now, when I press the accelerator, it will go into limp mode, fuel pressure drops, and the engine shuts off. At this point it won’t start at all. I replaced the fuel metering valve/regulator N290, but it didn’t change anything. I didn’t see metal shavings in the HPFP, but I did notice some dirt/contamination in the fuel system. Earlier I had codes for fuel pressure sensor range, fuel pressure too low, and fuel pressure too high. Now it only sets low fuel pressure faults and still won’t start. The in-tank/primary fuel pump appears to be working, and it doesn’t sound like the engine jumped timing. What are the most likely causes and best diagnostic steps for a no-start with low fuel pressure on a 3.0 TDI after sitting, especially with contamination present?

Diagnosis
Chevrolet
Silverado 2021

2021 Chevrolet Silverado 5.3L Cylinder 5 Misfire Diagnosis

I have a 2021 Chevy Silverado 5.3L with a consistent misfire on cylinder #5. I’ve already replaced the plug wires and the spark plug (the old plug was consistently fuel-soaked). I swapped the coil pack with cylinder #3 and the misfire stayed on #5. I also replaced injector #5. I can visibly see spark when testing the coil while it’s running, and compression on #5 while cranking is about 160 psi. Given these results, what are the most likely remaining causes and the next best diagnostic steps to isolate why cylinder #5 is still misfiring?

Diagnosis
Ford
F250 2004

2004 Ford F250 Won't Start After Injector #4 Replacement

I have a 2004.5 Ford F-250. Injector #4 failed, so I replaced the injector and reassembled everything correctly and torqued to spec. Since the repair, the truck will not start using the key. When I try to start it normally, I’m seeing about 130–200 RPM while cranking. Both batteries are new and fully charged, and I’m using a 6.7 starter. The truck will start if I jump/trigger it from the starter wire under the hood, but it won’t start from the ignition key. Now I also have a new issue where the instrument cluster stopped working, although the radio and windows still work. I’ve checked fuses but haven’t found anything obvious. What are the most likely causes and diagnostic steps for a no-start-from-key condition plus a dead cluster after injector replacement?

Diagnosis
Buick
Regal LS 2001

2001 Buick Regal LS Stalling and MAF/CKP Sensor Issues After Oil Pan Replacement

I have a 2001 Buick Regal LS (3.8L V6) with 117,636 miles. Right after a shop installed a new oil pan, the car broke down about a half mile later with a mass airflow (MAF) code. I replaced the MAF and got it home, but since then I haven’t been able to keep it running—it stalls at idle and won’t stay running reliably. I’ve replaced the intake boot, another MAF sensor, TPS, IAC, and CKP sensor. Now I’m seeing an 18X crank signal issue (CKP-related) along with a MAF code, and the engine stalls when it transitions to open loop. What are the most likely causes and the best diagnostic steps to fix this stalling/CKP 18X/MAF issue that started immediately after the oil pan job?

Diagnosis
BMW
X1 2013

2013 BMW X1 Repeated Cooling System Failures and Radiator Issues

I have a 2013 BMW X1 with repeated cooling system failures. The radiator has blown out on the left side twice, even after replacing major cooling components (radiator, water pump, thermostat, and a temp sensor). After the first round of repairs the car ran well and the heater worked normally, but then a small leak developed again on the left-side hose area and shortly after that the left side of the radiator failed again. A previous owner mentioned the car had an aftermarket tune/chip at one point but said it was returned to stock before selling. I’m looking for likely causes and the best diagnostic direction for why the left side of the radiator keeps leaking/blowing out.

Diagnosis