Within the last 4 - 5 months I have replaced the fuel pump twice and just today (about two months since the last replacement), the fuel pump has failed again. the throttle body is dumping fuel into the motor. As an Amazon Associate I earn from qualifying purchases. In addition, debris and sediment collects in the bottom of the tank and that stuff can damage the delicate internal workings as well. Blueprinted for longevity … 20% off orders over $100* + Free Ground Shipping** Online Ship-To Causes of Fuel Pump Failure The original Chevy pump motor has a life expectancy of about 15-20 years. Even if the pump doesn’t quit after running it dry, it could suffer a considerable reduction in operating pressure. In theory, the regulator can handle the Replacement of the harness connector is a fairly simple operation and the parts are readily available from your GM dealer parts department. Classic Cars Expert … Find CHEVROLET Fuel The Fuel pump harness connector pigtail repair kit comes with heat shrink connectors to protect the repair area. With the cost and difficulty of the repair it’s wise to follow the technical service bulletin. JavaScript is disabled. If you would like to find out more about what’s offered on this auto repair website please visit the homepage from this next link. This is because the pump is tank mounted and the fuel pump is replaced as a unit. What to Look for and What to Avoid, 5 Innovative Ways to Customize Your Car’s Interior. Ford vs Chevy vs Dodge: Who Makes the Best Large-Size Pickup Trucks? If you disconnect the line feeding the pump is there fuel there. Here are four of the most common …, Have you ever dreamt about driving in a classic car? Don't ignore it! 08-09-09 05:53 PM - Post# 1750895 What is the min and max pressure i should see from a stock mechanical fuel pump on a small block chevy. A … I put the boat in the shop on July 29th and just got it back 2 days ago. To make matters worse, what I have seen are repeat failures of the replacement unit. I have experienced repeat failures even when using the most expensive replacement Delco parts. The problem is the connector on the vehicle side of the harness. This process leaves more room for error and is also a large cause of repeat failures. We start by installing a fuel pressure gauge. 6 Reasons You Should Invest in One Today, 5 Tips for Smooth Car Maintenance in Winter, Handyman: 10 Updates You Can Make to Your Car on Your Own, Drive With Confidence by Buying the Best All Seasons Tires for Snow. When you get the Delco replacement parts it comes with a new connector on the fuel pump side. Since I first wrote this article the problem has expanded to the point a repair kit is now available. You can go on many automotive forums and see people discussing this issue. To troubleshoot a Chevy 350 engine expediently, you must figure out if the problem is the ignition, electrical, fuel or mechanical. I have a 94 3/4 pickup that will Last nite truck ran good. If your check engine light is on you more than likely have a hard I have a 1988 Chevy R30 2 wheel drive rollback truck with a 454, 4 barrel carb and mechanical fuel pump. The 1997 Chevrolet C/K 1500 has 2 problems reported for fuel pump failures. You can try disconnecting the feed from the pump and run a hose from the feed on the pump to a gas can and see if it pumps fuel from the can. Photo by Mark Gittelman. So you may not be able to tackle every fuel system issue on your car without some experience in car repair. 1997 Chevy Silverado. Chevy TBI's work fine with high pressure pumps, and will return un-used fuel to the tank, but you do have to set the pressure. He turned over the engine and filter never really got more than 1/4 full. This will restrict fuel flow. Fuel Pump Replacement. For a better experience, please enable JavaScript in your browser before proceeding. Failure to replace the electrical connector on the harness side can cause voltage spikes across the new fuel pump. There’s …, 4 Possible Reasons Why Your Car Smells Like Burning Rubber. Removal & Installation Relieve fuel system pressure.I Had Installed A Fuel Pump On My 94 Chevy Pickup. I have had the work done by one of the reputable car repair shops in town - … Also included is the Tahoe and suburban and their GMC counterparts such as the Sierra and Envoy. How to Choose the Best RV Repair Shop Near Me, Why You Should Get the NOx Sensor for Your Diesel, Are Maintenance-Free Batteries Better? to keep from hitting the motor mount because there is only about 2 inches in between. The technical service bulletin that explains the cause of the repeat failure of the Chevy fuel pump replacement unit covers all years from 1996 to 2003 and includes all of the pickup trucks. Ive replaced the fuel pump, filter and relay. This pump may look similar to others on the outside, but the internal components of the Pro/Cam fuel pump have been re-engineered to reduce leaks and maintain pressure. Any other ideas besides fuel pump? There is a solenoid on the frame rail that chooses which tank to pull from, and if the somehow the solenoid is set to the bypassed tank when the switch dies, it will be trying to pull from the wrong tank. Max pump pressure means very little, but the flow matters. I took off the fuel line to the carb and when he turned it over no fuel came out just a little air. The less gas in the tank the easier it is to deal with. Amazon's Choice for chevy 350 fuel pump Carter M4685 Mechanical Fuel Pump 4.7 out of 5 stars 201 $20.17 $ 20. I had to replace my fuel pump last week on my 1988 Chevy K5 Blazer, which means I had to remove the fuel tank. 3. This is why I'm confused why it stopped pumping gas everything is new from tank to the front. I'm still using the front motor mounts. The original Chevy pump motor has a life expectancy of about 15-20 years. Painless wire harness for TBI setup (been on for 4 years now same system differant motor). The fuel pump is new and he has barely ran motor since we started the project. In the online Chevrolet repair manual I use, a Tech Tip states, the connector should be replaced with the fuel pump assembly. Several years ago I had to replace the fuel pump - truck had about 100,000 miles. FUEL PUMP NOTE: When installing sending unit, DO NOT fold or twist strainer. For some reason it got stuck on the empty tank and when I tried to switch over to the other tank, it never actually switched over. When I tried using the stock 73 fuel pump I was having major problems getting the fuel line to the carb. Free Same Day Store Pickup. Next we bypassed the passenger side tank due to my son wanting to just get the truck running and figured we could replace the other sending unit later. Some aftermarket replacement pumps just include the motor. Had the dual tank setup. Take a few extra minutes and replace the connector. chevy 350 fuel problems At the beggining of this project about 6 months ago we dropped drivers side fuel tank. If your Chevy Silverado’s fuel pump goes bad, no fuel (or not enough fuel depending on whether or not it’s out all the way) can enter the engine. Sometimes it will get fuel and sometimes it wont. My sons truck is a 1985 chevy 350 1/2 ton short bed w/700r, performer intake, 600 edlebrock, headers, and flowmasters. Here are detailed instructions on determining if your fuel pump is bad and how to drop the gas/fuel tank on a Chevrolet K5 Blazer or Square Body Truck and replace it. Fuel system problems on C4 Corvettes include having a faulty fuel pump, restricted fuel filter, among other issues. The gas tank selector switch had gone bad. After 2 or 3 hours of messing with it and kicking myself wondering what the hell the problem was, i finally found it. Find wiring diagrams and tech tips along with parts and labor estimates. A forum community dedicated to hot rod owners and enthusiasts. If that works, then see if you can find out which tank it's trying to pump from and go from there. Still, you can take on some common pump problems using one The tank was full of trash but was not rusted inside. The switch seemed to act as normal, but it really wasn't making the change. Troubleshooting your TBI Fuel Injection System Most of the problems encountered while installing your fuel injection system or after a time of operation are very simple. I do not recommend that you do this I’m just sharing a story. Running the vehicle out of fuel, which will actually run the pump in a dry state can shorten the expected life span. 1994 Chevy Truck Won’t Start But Lots of Fuel at Throttle Body Reader Question My fiancé’ bought a 1994 Chevy 3/4 ton 4×4, 5.7L, V8. '98 Chevy Silverado, Fuel Pump Problems Q: I have a ‘98 Chevy Silverado truck and I’ve replaced the fuel pump twice in the past month @$350 each time. Watch a few of my online car repair videos. This is fifteen dollars well spent. This Chevrolet problems story is just one of my automotive news articles that you might find helpful. Then visit the fix cars blog for more auto repair information. In-tank fuel pump. By Mark Gittelman. Give this fuel pump repair page a bookmark or share with a friend. Then it died out. I have a 1994 chevy truck 5.7 liter . In my own personal experience I’ve had no comebacks since using the new procedure. Could somebody have drained the tank overnight? Last week the truck stalled at an idle, started right back up an shut off again immediately, then would not start,,,,no fuel at How Much Is a Car Paint Job Going to Cost in 2021? The Chevrolet service bulletin states that the cause of the repeat failures is due to worn or damaged electrical connectors at the fuel pump assembly. Any Ideas would be appriciated. So, as suggested previously and see if it will pump from a can. Any help would be appreciated... Could be the line coming from the tank or the pickup in the tank. 1989 Chevy 350 engine with complete TBI setup minus factory wiring harness, EGR,oil pressure sensor. 4 Surprising Factors That Increase Prices, Need a Mechanic? So it's a no-brainer that a malfunctioning fuel pump is bad news. Because the fuel pump is the component responsible for supplying the engine with the fuel required for it to run, any issues with it can cause major drivability and performance problems. When you buy the replacement parts from Delco, which is what I do for my customers and also recommend to driveway mechanics, they will sell you a complete tank module. Re: Chevy 350 Engine/Mercruiser 5.7 Problems!! I'm installing a 1973 Chevy 350 in my 55 Chevy. Order Chevrolet P30 Fuel Pump online today. Recently I bought a 1979 Chevy 1 ton truck with the 350 engine. I'm not sure what all you have done to bypass the other tank. Also it has good presure all the way through the fuel line. Fuel pump problems are hard to diagnose sometimes. If you have a fuel pump harness connector that looks like the flat one on the right or the square one at the bottom, then consider replacing it when replacing the pump. Fram inline fuel filter (the This means you replace the motor and transfer the used fuel pump sock, fuel sending unit, and hanger assembly. That has been the pattern now for the last several months. Check out free battery charging and engine diagnostic testing while you are in store. Today he went to take it for a ride and it started but ran rough for a few seconds. It’s happened to me more then once and I’ve read about it on auto repair forums. The video section of this auto repair website has received a lot of positive feedback. You can look for more in the auto repair news section. WATERWICH Compatible with Fuel Pump 1996 1997 Chevy Silverado Suburban GMC Sierra C/K 1500 2500 3500 5.7L 4.3L 5.0L 7.4L Replaces e3622s,SP01C1H ECCPP Replacement for Fuel Pump, Assembly for Chevrolet Chevy I found a factory service bulletin that sheds some light on why it happens and what you can do to solve the problem. Get access to the specific repair procedures for your vehicle. But I'm Still Not fuel pump relay & fuze location for 1994 chevy 51500 pick up Truck was running fine until I came out of grocery - Chevrolet 1994 K1500 question Search Results images for Where is the fuel pump prime connector . Oh and don’t forget the Cadillac Escalade is also included. Running the vehicle out of fuel, which will actually run the pump in a dry state can shorten the expected life span.