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1988 Jeep Wrangler
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1988 Jeep Wrangler

1988 Jeep Wrangler Fuel Tanks

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Fuel Tank, 15 Gallons / 57 Liters, Lock Ring Kit Included
JC Whitney®
Fuel Tank, 15 Gallons / 57 Liters, Lock Ring Kit Included
Part Number: REPJ670101
Guaranteed to Fit
$81.49
Vehicle Fitment
  • 1988 Jeep Wrangler Sahara 6 Cyl 4.2L 15 Gallon, 25-1/4 x 18-1/4 x 10-7/8, Lock Ring Kit Included
  • 1988 Jeep Wrangler Base 6 Cyl 4.2L 15 Gallon, 25-1/4 x 18-1/4 x 10-7/8, Lock Ring Kit Included
  • 1988 Jeep Wrangler Laredo 6 Cyl 4.2L 15 Gallon, 25-1/4 x 18-1/4 x 10-7/8, Lock Ring Kit Included
  • 1988 Jeep Wrangler S 6 Cyl 4.2L 15 Gallon, 25-1/4 x 18-1/4 x 10-7/8, Lock Ring Kit Included
  • 1988 Jeep Wrangler Sport 6 Cyl 4.2L 15 Gallon, 25-1/4 x 18-1/4 x 10-7/8, Lock Ring Kit Included
  • 1988 Jeep Wrangler Islander 6 Cyl 4.2L 15 Gallon, 25-1/4 x 18-1/4 x 10-7/8, Lock Ring Kit Included
Product Details
Notes : With lock ringRecommended Use : OE ReplacementProduct Fit : Direct FitCapacity : 15 gallons / 57 litersMaterial : Galvanized SteelColor Finish : PaintedQuantity Sold : Sold individuallyReplaces OE Number : 83502960Replaces Partslink Number : CH3900106Warranty : 1-year JC Whitney unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Chromium, Lead and lead compounds, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Returns Policy : 30-Day Return PolicyInterchange Part Number : JP1D, 83502960, CH3900106
Fuel Tank, 15 Gallons / 57 Liters, without Filler Neck and Seal(s), Lock Ring Kit Included
JC Whitney®
Fuel Tank, 15 Gallons / 57 Liters, without Filler Neck and Seal(s), Lock Ring Kit Included
Part Number: J670112
Guaranteed to Fit
$83.00
Vehicle Fitment
  • 1988 Jeep Wrangler Laredo 4 Cyl 2.5L 15 Gallon, 25-1/4 x 18-1/4 x 10-7/8, Lock Ring Kit Included
  • 1988 Jeep Wrangler Base 4 Cyl 2.5L 15 Gallon, 25-1/4 x 18-1/4 x 10-7/8, Lock Ring Kit Included
  • 1988 Jeep Wrangler S 4 Cyl 2.5L 15 Gallon, 25-1/4 x 18-1/4 x 10-7/8, Lock Ring Kit Included
  • 1988 Jeep Wrangler Sahara 4 Cyl 2.5L 15 Gallon, 25-1/4 x 18-1/4 x 10-7/8, Lock Ring Kit Included
  • 1988 Jeep Wrangler Sport 4 Cyl 2.5L 15 Gallon, 25-1/4 x 18-1/4 x 10-7/8, Lock Ring Kit Included
Product Details
Notes : Without filler neck and seal(s)Recommended Use : OE ReplacementProduct Fit : Direct FitCapacity : 15 gallons / 57 litersMaterial : Galvanized SteelColor Finish : PaintedQuantity Sold : Sold individuallyReplaces OE Number : 83502961Warranty : 1-year JC Whitney unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Chromium, Lead and lead compounds, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Returns Policy : 30-Day Return PolicyInterchange Part Number : JP1E, 83502961
Fuel Tank Kit, 15 gallons / 57 liters, includes Fuel Tank Strap
JC Whitney®
Fuel Tank Kit, 15 gallons / 57 liters, includes Fuel Tank Strap
Part Number: KIT-053117-08
Guaranteed to Fit
$109.49
Vehicle Fitment
  • 1988 Jeep Wrangler Sahara 6 Cyl 4.2L 15 Gallon, 25-1/4 x 18-1/4 x 10-7/8, Lock Ring Kit Included
  • 1988 Jeep Wrangler Base 6 Cyl 4.2L 15 Gallon, 25-1/4 x 18-1/4 x 10-7/8, Lock Ring Kit Included
  • 1988 Jeep Wrangler Laredo 6 Cyl 4.2L 15 Gallon, 25-1/4 x 18-1/4 x 10-7/8, Lock Ring Kit Included
  • 1988 Jeep Wrangler S 6 Cyl 4.2L 15 Gallon, 25-1/4 x 18-1/4 x 10-7/8, Lock Ring Kit Included
  • 1988 Jeep Wrangler Sport 6 Cyl 4.2L 15 Gallon, 25-1/4 x 18-1/4 x 10-7/8, Lock Ring Kit Included
  • 1988 Jeep Wrangler Islander 6 Cyl 4.2L 15 Gallon, 25-1/4 x 18-1/4 x 10-7/8, Lock Ring Kit Included
Product Details
Components : (1) Fuel Tank and (3) Fuel Tank StrapRecommended Use : OE ReplacementProduct Fit : Direct FitCapacity : 15 gallons / 57 litersMaterial : Galvanized SteelColor Finish : PaintedQuantity Sold : KitReplaces OE Number : 83502960Replaces Partslink Number : CH3900106Warranty : 1-year JC Whitney unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Chromium, Lead and lead compounds, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Returns Policy : 30-Day Return PolicyInterchange Part Number : JP1D, 83502960, CH3900106, ST60
Fuel Tank, 20 gallons / 76 liters
Crown®
Fuel Tank, 20 gallons / 76 liters
Part Number: 52002633PL
Guaranteed to Fit
$386.49
Vehicle Fitment
  • 1988 Jeep Wrangler Laredo 4 Cyl 2.5L GAS, 20 Gallon
  • 1988 Jeep Wrangler Sahara 6 Cyl 4.2L GAS, 20 Gallon
  • 1988 Jeep Wrangler Base 6 Cyl 4.2L GAS, 20 Gallon
  • 1988 Jeep Wrangler Base 4 Cyl 2.5L GAS, 20 Gallon
  • 1988 Jeep Wrangler Sport 6 Cyl 4.2L GAS, 20 Gallon
  • 1988 Jeep Wrangler S 4 Cyl 2.5L GAS, 20 Gallon
  • 1988 Jeep Wrangler Laredo 6 Cyl 4.2L GAS, 20 Gallon
  • 1988 Jeep Wrangler Sport 4 Cyl 2.5L GAS, 20 Gallon
  • 1988 Jeep Wrangler S 6 Cyl 4.2L GAS, 20 Gallon
  • 1988 Jeep Wrangler Sahara 4 Cyl 2.5L GAS, 20 Gallon
  • 1988 Jeep Wrangler Islander 6 Cyl 4.2L GAS, 20 Gallon
Product Details
Recommended Use : OE ReplacementProduct Fit : Direct FitCapacity : 20 gallons / 76 litersMaterial : PlasticColor Finish : PaintedQuantity Sold : Sold individuallyReplaces OE Number : 52018287, 52002633Warranty : 1 year or 12,000-mile Crown limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Fuel Tank, 20 gallons / 76 liters
Crown®
Fuel Tank, 20 gallons / 76 liters
Part Number: CR52002633PLK
Guaranteed to Fit
$358.49
Vehicle Fitment
  • 1988 Jeep Wrangler Laredo 4 Cyl 2.5L GAS, With 20 Gallon Tank
  • 1988 Jeep Wrangler Base 4 Cyl 2.5L GAS, With 20 Gallon Tank
  • 1988 Jeep Wrangler S 4 Cyl 2.5L GAS, With 20 Gallon Tank
  • 1988 Jeep Wrangler Sport 4 Cyl 2.5L GAS, With 20 Gallon Tank
  • 1988 Jeep Wrangler Sahara 4 Cyl 2.5L GAS, With 20 Gallon Tank
Product Details
Notes : 1987-90 models with 4.2L engine will need to modify skid plate and hoses; Includes Upper Straps, Sending Unit Gasket, (2) Vent Valves, and (2) Vapor SealsRecommended Use : OE ReplacementProduct Fit : Direct FitCapacity : 20 gallons / 76 litersMaterial : PlasticColor Finish : PaintedQuantity Sold : KitWarranty : 1 year or 12,000-mile Crown limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

OE Solutions Series Fuel Tank, 15 gallons / 57 liters
Dorman®
OE Solutions Series Fuel Tank, 15 gallons / 57 liters
Part Number: RB576653
Guaranteed to Fit
$173.99
Vehicle Fitment
  • 1988 Jeep Wrangler S 6 Cyl 4.2L CARB
  • 1988 Jeep Wrangler Base 6 Cyl 4.2L CARB
  • 1988 Jeep Wrangler Laredo 6 Cyl 4.2L CARB
  • 1988 Jeep Wrangler Sahara 6 Cyl 4.2L CARB
  • 1988 Jeep Wrangler Sport 6 Cyl 4.2L CARB
  • 1988 Jeep Wrangler Islander 6 Cyl 4.2L CARB
Product Details
Notes : With seal(s); Without filler neckRecommended Use : OE ReplacementProduct Fit : Direct FitCapacity : 15 gallons / 57 litersMaterial : Galvanized SteelColor Finish : PaintedQuantity Sold : Sold individuallyReplaces OE Number : JP1D, 83502961Warranty : Lifetime Dorman limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Chromium, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : OE Solutions SeriesInterchange Part Number : JP1D, 83502961
Fuel Tank, 15 gallons / 57 liters
Key Parts®
Fuel Tank, 15 gallons / 57 liters
Part Number: FITJP1D
Guaranteed to Fit
$106.99
Vehicle Fitment
  • 1988 Jeep Wrangler S 6 Cyl 4.2L GAS, CARB, 15 Gal Fuel Tank
  • 1988 Jeep Wrangler Sahara 6 Cyl 4.2L GAS, CARB, 15 Gal Fuel Tank
  • 1988 Jeep Wrangler Laredo 6 Cyl 4.2L GAS, CARB, 15 Gal Fuel Tank
  • 1988 Jeep Wrangler Base 6 Cyl 4.2L GAS, CARB, 15 Gal Fuel Tank
  • 1988 Jeep Wrangler Sport 6 Cyl 4.2L GAS, CARB, 15 Gal Fuel Tank
  • 1988 Jeep Wrangler Islander 6 Cyl 4.2L GAS, CARB, 15 Gal Fuel Tank
Product Details
Recommended Use : OE ReplacementProduct Fit : Direct FitCapacity : 15 gallons / 57 litersMaterial : Galvanized SteelColor Finish : NaturalQuantity Sold : Sold individuallyWarranty : Key Parts limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Fuel Tank, 15 gallons / 57 liters
Key Parts®
Fuel Tank, 15 gallons / 57 liters
Part Number: FITJP1E
Guaranteed to Fit
$108.99
Vehicle Fitment
  • 1988 Jeep Wrangler Laredo 4 Cyl 2.5L GAS, FI, 15 Gal Fuel Tank
  • 1988 Jeep Wrangler Base 4 Cyl 2.5L GAS, FI, 15 Gal Fuel Tank
  • 1988 Jeep Wrangler S 4 Cyl 2.5L GAS, FI, 15 Gal Fuel Tank
  • 1988 Jeep Wrangler Sahara 4 Cyl 2.5L GAS, FI, 15 Gal Fuel Tank
  • 1988 Jeep Wrangler Sport 4 Cyl 2.5L GAS, FI, 15 Gal Fuel Tank
Product Details
Recommended Use : OE ReplacementProduct Fit : Direct FitCapacity : 15 gallons / 57 litersMaterial : Galvanized SteelColor Finish : NaturalQuantity Sold : Sold individuallyWarranty : Key Parts limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Liland OE Replacement Fuel Tank, 15 gallons / 57 liters
Liland®
Liland OE Replacement Fuel Tank, 15 gallons / 57 liters
Part Number: LILIJP1D
Guaranteed to Fit
$128.99
Vehicle Fitment
  • 1988 Jeep Wrangler S 6 Cyl 4.2L
  • 1988 Jeep Wrangler Base 6 Cyl 4.2L
  • 1988 Jeep Wrangler Laredo 6 Cyl 4.2L
  • 1988 Jeep Wrangler Sahara 6 Cyl 4.2L
  • 1988 Jeep Wrangler Sport 6 Cyl 4.2L
  • 1988 Jeep Wrangler Islander 6 Cyl 4.2L
Product Details
Recommended Use : OE ReplacementProduct Fit : Direct FitCapacity : 15 gallons / 57 litersMaterial : Galvanized SteelColor Finish : PaintedQuantity Sold : Sold individuallyWarranty : 1-year limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Liland OE Replacement
Liland OE Replacement Fuel Tank, 15 gallons / 57 liters
Liland®
Liland OE Replacement Fuel Tank, 15 gallons / 57 liters
Part Number: LILIJP1E
Guaranteed to Fit
$129.99
Vehicle Fitment
  • 1988 Jeep Wrangler Laredo 4 Cyl 2.5L
  • 1988 Jeep Wrangler Base 4 Cyl 2.5L
  • 1988 Jeep Wrangler S 4 Cyl 2.5L
  • 1988 Jeep Wrangler Sahara 4 Cyl 2.5L
  • 1988 Jeep Wrangler Sport 4 Cyl 2.5L
Product Details
Recommended Use : OE ReplacementProduct Fit : Direct FitCapacity : 15 gallons / 57 litersMaterial : Galvanized SteelColor Finish : PaintedQuantity Sold : Sold individuallyWarranty : 1-year limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Liland OE Replacement
Fuel Tank, 14.5 gallons / 55 liters
Crown®
Fuel Tank, 14.5 gallons / 55 liters
Part Number: 83502961
Guaranteed to Fit
$146.49
Vehicle Fitment
  • 1988 Jeep Wrangler Laredo 4 Cyl 2.5L GAS, Rear, 14.5 Gallon
  • 1988 Jeep Wrangler Base 4 Cyl 2.5L GAS, Rear, 14.5 Gallon
  • 1988 Jeep Wrangler S 4 Cyl 2.5L GAS, Rear, 14.5 Gallon
  • 1988 Jeep Wrangler Sahara 4 Cyl 2.5L GAS, Rear, 14.5 Gallon
  • 1988 Jeep Wrangler Sport 4 Cyl 2.5L GAS, Rear, 14.5 Gallon
Product Details
Notes : 14.5 Gallon Tank (Metal)Recommended Use : OE ReplacementProduct Fit : Direct FitCapacity : 14.5 gallons / 55 litersMaterial : Galvanized SteelColor Finish : PaintedQuantity Sold : Sold individuallyWarranty : 1 year or 12,000-mile Crown limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Fuel Tank, 14.5 gallons / 55 liters
Crown®
Fuel Tank, 14.5 gallons / 55 liters
Part Number: 83502960
Guaranteed to Fit
$161.49
Vehicle Fitment
  • 1988 Jeep Wrangler S 6 Cyl 4.2L GAS, Rear, 14.5 Gallon
  • 1988 Jeep Wrangler Base 6 Cyl 4.2L GAS, Rear, 14.5 Gallon
  • 1988 Jeep Wrangler Laredo 6 Cyl 4.2L GAS, Rear, 14.5 Gallon
  • 1988 Jeep Wrangler Sahara 6 Cyl 4.2L GAS, Rear, 14.5 Gallon
  • 1988 Jeep Wrangler Sport 6 Cyl 4.2L GAS, Rear, 14.5 Gallon
  • 1988 Jeep Wrangler Islander 6 Cyl 4.2L GAS, Rear, 14.5 Gallon
Product Details
Notes : 14.5 Gallon TankRecommended Use : OE ReplacementProduct Fit : Direct FitCapacity : 14.5 gallons / 55 litersMaterial : Galvanized SteelColor Finish : PaintedQuantity Sold : Sold individuallyWarranty : 1 year or 12,000-mile Crown limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

OE Solutions Series Fuel Tank, 15 gallons / 57 liters
Dorman®
OE Solutions Series Fuel Tank, 15 gallons / 57 liters
Part Number: RB576654
Guaranteed to Fit
$135.49
Vehicle Fitment
  • 1988 Jeep Wrangler Laredo 4 Cyl 2.5L Electronic
  • 1988 Jeep Wrangler Base 4 Cyl 2.5L Electronic
  • 1988 Jeep Wrangler S 4 Cyl 2.5L Electronic
  • 1988 Jeep Wrangler Sahara 4 Cyl 2.5L Electronic
  • 1988 Jeep Wrangler Sport 4 Cyl 2.5L Electronic
Product Details
Notes : With seal(s); Without filler neckRecommended Use : OE ReplacementProduct Fit : Direct FitCapacity : 15 gallons / 57 litersMaterial : Galvanized SteelColor Finish : PaintedQuantity Sold : Sold individuallyReplaces OE Number : JP1E, 83502960Warranty : Lifetime Dorman limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Chromium, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : OE Solutions SeriesInterchange Part Number : JP1E, 83502960
Fuel Tank, 20 gallons / 76 liters
Crown®
Fuel Tank, 20 gallons / 76 liters
Part Number: CR52002633PLMK
Guaranteed to Fit
$605.99
Vehicle Fitment
  • 1988 Jeep Wrangler Laredo 4 Cyl 2.5L With 20 Gallon Tank
  • 1988 Jeep Wrangler Base 6 Cyl 4.2L With 20 Gallon Tank
  • 1988 Jeep Wrangler Sahara 6 Cyl 4.2L With 20 Gallon Tank
  • 1988 Jeep Wrangler Base 4 Cyl 2.5L With 20 Gallon Tank
  • 1988 Jeep Wrangler Sport 6 Cyl 4.2L With 20 Gallon Tank
  • 1988 Jeep Wrangler S 4 Cyl 2.5L With 20 Gallon Tank
  • 1988 Jeep Wrangler Laredo 6 Cyl 4.2L With 20 Gallon Tank
  • 1988 Jeep Wrangler Sport 4 Cyl 2.5L With 20 Gallon Tank
  • 1988 Jeep Wrangler S 6 Cyl 4.2L With 20 Gallon Tank
  • 1988 Jeep Wrangler Sahara 4 Cyl 2.5L With 20 Gallon Tank
  • 1988 Jeep Wrangler Islander 6 Cyl 4.2L With 20 Gallon Tank
Product Details
Notes : Includes Fuel Tank Skid Plate, Fuel Filler Hose, Fuel Vent Hose, (2) Fuel Tank Straps w/ Hardware, Fuel Sending Unit Gasket, (2) Fuel Vent Valves, and (2) Vapor Seals; Does not Include Fuel Sending Unit/Fuel ModuleRecommended Use : OE ReplacementProduct Fit : Direct FitCapacity : 20 gallons / 76 litersMaterial : PlasticColor Finish : PaintedQuantity Sold : KitWarranty : 1 year or 12,000-mile Crown limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Page 1 of 1 | Showing 1 - 14 of 14 results

Popular Products

Product Questions & Answers

Crown Fuel Tank, 20 gallons / 76 liters
$605.99
Q:Does this tank have a baffle?
Dan W.
A:BEST ANSWERHi Dan, I'm glad to assist you. There is no info even from our supplier Crown Automotive if the fuel tank is with baffled design inside. We will be checking this with our supplier and email you back. Please wait for our follow-up email. If good already. Grab our discounted price and click the link below to buy it when you are ready. Happy shopping! https://www.carparts.com/fuel-tank/crown/cr52002633plmk?can=cpje1043_CSQA_20230602 Show less
Jeonino E.
 
1 Question, 1 AnswerView all Q&As >
Crown Fuel Tank, 14.5 gallons / 55 liters
$161.49
Q:Can you give me measurements of tanks for 1988 jeep  yj 4.2 liter ?
Richard
A:BEST ANSWERHi Richard, I'm glad to assist you. Unfortunately, we do not have the exact dimensions of the fuel tank. We only have the packaging dimensions. The length is 30 inches, the width is 20 inches, and the height is 16 inches. This is a guaranteed fit with the 1987-1990 Jeep Wrangler YJ 4.2L. Click the link below to order today and grab our promo sale price offer, which also comes with a 30-day post-purchase price match guarantee. I hope this helps. Happy shopping. https://www.carparts.com/fuel-tank/crown/83502960?can=CPJE1043 Show less
Jeonino E.
 
1 Question, 1 AnswerView all Q&As >

Helpful Automotive Resources

Evaporative Emission Control (EVAP) System 101: The Basics
Evaporative Emission Control (EVAP) System 101: The BasicsBut that doesn’t mean you should ignore a problem with the EVAP system; on the contrary, an EVAP failure is almost guaranteed to prevent your car from passing a state emissions test. What’s more, a problem in the system increases the harmful emissions coming from your vehicle.
P0440 Code: Evaporative Emission Control System Malfunction – Large Leak
P0440 Code: Evaporative Emission Control System Malfunction – Large LeakThe caveat is that most vehicles set a different code for a large leak, and don’t even list a P0440 code. Some will set a P0455 or some other code. One of the vehicles that lists the P0440 is a 2007 Jeep Wrangler. Most other vehicles use another trouble code
P0442 Code: Evaporative Emission Control System Leak Detected (Small Leak)
P0442 Code: Evaporative Emission Control System Leak Detected (Small Leak)Typically, the most common symptoms you are most likely to experience if your vehicle is triggering the OBD-II trouble code P0442 would be an illuminated Check Engine Light or increased vehicle emissions.
P0456 Code: Evaporative Emission System Small Leak Detected
P0456 Code: Evaporative Emission System Small Leak Detected Pro Tip: Typically, the EVAP leak test won’t run unless the fuel level is between 15 and 85 percent. For that reason, people who keep their tanks topped off
P0441 Code: Evaporative Emission Control System Incorrect Purge Flow
P0441 Code: Evaporative Emission Control System Incorrect Purge FlowThis code only appears on vehicles that have a purge flow sensor or a leak detection pump. Early OBD2 Ford Rangers with non-enhanced EVAP systems simply had a small thermistor in the purge flow line that reported purge flow. Toyotas and Dodge vehicles with Leak Detection Pumps (LDP) measure system
P0457 Code: Evaporative Emission System Leak Detected (Fuel Cap Loose/Off)
P0457 Code: Evaporative Emission System Leak Detected (Fuel Cap Loose/Off) Pro Tip: Newer systems check the EVAP system for leaks. If they find no leak and then notice the fuel level has changed followed by a large