One of the worst problems that can happen to a vehicle is a bad fuel pump. Shop 350 Chevy Small Block V8 Mechanical Fuel Pumps and get Free Shipping on orders over $99 at Speedway Motors, the Racing and Rodding Specialists. After 2 or 3 hours of messing with it and kicking myself wondering what the hell the problem was, i finally found 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. Replacement of the fuel pump is not a quick or easy job. 3. That has been the pattern now for the last several months. Get access to the specific repair procedures for your vehicle. It is completely reworked to increase flow, and machined with 1/2" inlet and outlet to get more fuel to the engine faster. Any Ideas would be appriciated. So, as suggested previously and see if it will pump from a can. 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 . the throttle body is dumping fuel into the motor. Even if the pump doesnt quit after running it dry, it could suffer a considerable reduction in operating pressure. As an Amazon Associate I earn from qualifying purchases. Also it has good presure all the way through the fuel line. I looked under the hood at his fuel filter before the carb and it barely had any fuel in it. I'm still using the front motor mounts. Max pump pressure means very little, but the flow matters. Today he went to take it for a ride and it started but ran rough for a few seconds. What to Look for and What to Avoid, 5 Innovative Ways to Customize Your Cars Interior. Usually, a bad or failing fuel pump will Take a few extra minutes and replace the connector. It appears no fuel coming from pump. In the online Chevrolet repair manual I use, a Tech Tip states, the connector should be replaced with the fuel pump assembly. 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. The switch seemed to act as normal, but it really wasn't making the change. Running the vehicle out of fuel, which will actually run the pump in a dry state can shorten the expected life span. Over time this can damage the part. Exhaust leaks can become a serious issue if they aren't taken care of early enough. If your Chevy Silverados fuel pump goes bad, no fuel (or not enough fuel depending on whether or not its out all the way) can enter the engine. The original Chevy pump motor has a life expectancy of about 15-20 years. Any help would be appreciated Could be the line coming from the tank or the pickup in the tank. Blueprinted for longevity At the beggining of this project about 6 months ago we dropped drivers side fuel tank. I participate in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. Find wiring diagrams and tech tips along with parts and labor estimates. More details about this are below, but you might want to download your Chevy manual to help. This is fifteen dollars well spent. I'm installing a 1973 Chevy 350 in my 55 Chevy. 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. The total miles driven , The average American pays around $2,388 per year in car , If your car needs some maintenance, and you do not , Its a beautiful machine that makes you feel free. Thanks Ive replaced the fuel pump, filter and relay. Replacement of the harness connector is a fairly simple operation and the parts are readily available from your GM dealer parts department. Check out free battery charging and engine diagnostic testing while you are in store. Then visit the fix cars blog for more auto repair information. Had the dual tank setup. Re: Chevy 350 Engine/Mercruiser 5.7 Problems!! The tank was full of trash but was not rusted inside. Free Same Day Store Pickup. I've only driven it about 200 miles or so. When I tried using the stock 73 fuel pump I was having major problems getting the fuel line to the carb. 1989 Chevy 350 engine with complete TBI setup minus factory wiring harness, EGR,oil pressure sensor. 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? I had to replace my fuel pump last week on my 1988 Chevy K5 Blazer, which means I had to remove the fuel tank. You can also find out more about the mechanics that built it and why they think that many people can fix their own vehicles with some quality auto repair advice. Also included is the Tahoe and suburban and their GMC counterparts such as the Sierra and Envoy. I'm not sure what all you have done to bypass the other tank. When the fuel pump wont run he pounds the under side of the fuel tank where the pump is mounted with the key on and it starts running. This will restrict fuel flow. the most common knock out of a 350 is a lifter, a rod, fuel pump rod if you have a mechanical fuel pump, or loose bolts holding the torque converter on, How loud is the noise and what part of the engine is it coming from. The sending unit was rusted so we cleaned the tank and replaced the sending unit. Gasoline is a petroleum product and lubricates the inside of the fuel pump, impeller and other moving parts. 2. Could somebody have drained the tank overnight? Failure to replace the electrical connector on the harness side can cause voltage spikes across the new fuel pump. Fuel pump problems are hard to diagnose sometimes. You can look for more in the auto repair news section. You can go on many automotive forums and see people discussing this issue. My truck died in a parking lot (better than on the side of the road). What Affects Car Insurance Rates? Several years ago I had to replace the fuel pump - truck had about 100,000 miles. The video section of this auto repair website has received a lot of positive feedback. Oh and dont forget the Cadillac Escalade is also included. I found a factory service bulletin that sheds some light on why it happens and what you can do to solve the problem. Nevertheless, the more you run the vehicle low on fuel or out of fuel the more damage will occur internally and the quicker the pump will fail. Photo by Mark Gittelman. Any other ideas besides fuel pump? If the engine is not making noise (i.e. Then it died out. Don't ignore it! In-tank fuel pump. This is because the pump is tank mounted and the fuel pump is replaced as a unit. The replacement parts for the job are also not inexpensive. We start by installing a fuel pressure gauge. Fram inline fuel filter (the 1997 Chevy Silverado. So you may not be able to tackle every fuel system issue on your car without some experience in car repair. 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. '98 Chevy Silverado, Fuel Pump Problems Q: I have a 98 Chevy Silverado truck and Ive replaced the fuel pump twice in the past month @$350 each time. I do not recommend that you do this Im just sharing a story. , Your parents and grandparents might have had an easy time , Where did all the drivers go? banging or knocking), it is easiest to first check for spark (ignition Ford vs Chevy vs Dodge: Who Makes the Best Large-Size Pickup Trucks? 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. Here are four of the most common , Have you ever dreamt about driving in a classic car? Check the fuel pump fuse. Recently I bought a 1979 Chevy 1 ton truck with the 350 engine. In my own personal experience Ive had no comebacks since using the new procedure. It started on Chevrolet truck models from 1996 to 2003 model years, but has expanded to other models as the connector and pump assemblies are not aging well. Give this fuel pump repair page a bookmark or share with a friend. I have had the work done by one of the reputable car repair shops in town - I put the boat in the shop on July 29th and just got it back 2 days ago. It was running really good, starting easy, and idling fine. 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. Here's a handy guide on , Have you noticed a foul smell coming from your car? The less gas in the tank the easier it is to deal with. With the cost and difficulty of the repair its wise to follow the technical service bulletin. I have experienced repeat failures even when using the most expensive replacement Delco parts. This factory replacement unit also includes the fuel level gauge sender, hanger assembly and tank filter sometimes called the sock. A forum community dedicated to hot rod owners and enthusiasts. Artificial Intelligence is no match for Natural Stupidity. Removal & Installation Relieve fuel system pressure.I Had Installed A Fuel Pump On My 94 Chevy Pickup. Since I first wrote this article the problem has expanded to the point a repair kit is now available. 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. If that works, then see if you can find out which tank it's trying to pump from and go from there. By Mark Gittelman. Fuel Pump Replacement. Theres , 4 Possible Reasons Why Your Car Smells Like Burning Rubber. I hadn't bypassed either of my tanks, but one was empty. If you would like to find out more about whats offered on this auto repair website please visit the homepage from this next link. 4 Surprising Factors That Increase Prices, Need a Mechanic? Come join the discussion about restoration, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! 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 Watch a few of my online car repair videos. This Chevrolet problems story is just one of my automotive news articles that you might find helpful. Running the vehicle out of fuel, which will actually run the pump in a dry state can shorten the expected life span. To troubleshoot a Chevy 350 engine expediently, you must figure out if the problem is the ignition, electrical, fuel or mechanical. Often, it's not the pump itself that fails to function, but the power that supplies it. 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. This is why I'm confused why it stopped pumping gas everything is new from tank to the front. The fuel pump is new and he has barely ran motor since we started the project. Fuel system problems on C4 Corvettes include having a faulty fuel pump, restricted fuel filter, among other issues. VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Sometimes it will get fuel and sometimes it wont. In fact, I have a financially strapped friend with an 04 Silverado that now caries a heavy rubber mallet in the truck. Without gas your Silverado will not run at all. 1994 Chevy Truck Wont Start But Lots of Fuel at Throttle Body Reader Question My fianc bought a 1994 Chevy 3/4 ton 44, 5.7L, V8. If your check engine light is on you more than likely have a hard Wire size, wire unions, and a proper ground are all equal and critical elements of a properly operating fuel pump. To make matters worse, what I have seen are repeat failures of the replacement unit. I had this problem once on my 85 silverado. He turned over the engine and filter never really got more than 1/4 full. 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. The defective Chevy fuel pumps can cause a stalling condition or a no start situation that can leave you stranded. The gas tank selector switch had gone bad. I have a 94 3/4 pickup that will 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. This means you replace the motor and transfer the used fuel pump sock, fuel sending unit, and hanger assembly. 1. In fact it has more visitors than any other page. 20% off orders over $100* + Free Ground Shipping** Online Ship-To Common Mechanical Fuel Pump Problems 2.. Small Block Chevy Fuel Pump. Classic Cars Expert Find CHEVROLET Fuel My sons truck is a 1985 chevy 350 1/2 ton short bed w/700r, performer intake, 600 edlebrock, headers, and flowmasters. I have a gage on it and at idle it is steady at 5.5 psi and when i open the thorttle it drops to 4.5 psi and stays there until i close the throttle and then it jumps back up to 5.5 psi.Engine runs good at 20' hg when ideling drops and A Some aftermarket replacement pumps just include the motor. In theory, the regulator can handle the Chevrolet fuel pump failures are a common and growing problem. It only has 49,000 miles on it so it has sat most of it's life. 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. Its happened to me more then once and Ive read about it on auto repair forums. For a better experience, please enable JavaScript in your browser before proceeding. Last week the truck stalled at an idle, started right back up an shut off again immediately, then would not start,,,,no fuel at 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. Average repair cost is $440 at 155,000 miles. I made a short video that reviews the technical bulletin and outlines a few steps you can take to reduce repeat failures. Bring your at home auto repairs to the next level with Mitchell Do it Yourself Auto Repair Information and Wiring Diagrams. chevy 350 fuel problems At the beggining of this project about 6 months ago we dropped drivers side fuel tank. The Fuel pump harness connector pigtail repair kit comes with heat shrink connectors to protect the repair area. If you disconnect the line feeding the pump is there fuel there. Order Chevrolet P30 Fuel Pump online today. 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. JavaScript is disabled. When you get the Delco replacement parts it comes with a new connector on the fuel pump side. I have a 1994 chevy truck 5.7 liter . 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 PUMP NOTE: When installing sending unit, DO NOT fold or twist strainer. 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. See if it will pump from a can as T-Bucket suggested. Seven Fuel Pump Warning Signs The fuel pump's job is pretty self-explanatory: to pump fuel from the gas tank to the engine. I took off the fuel line to the carb and when he turned it over no fuel came out just a little air. to keep from hitting the motor mount because there is only about 2 inches in between. The tank was full of trash but was not rusted inside. I have a 1988 Chevy R30 2 wheel drive rollback truck with a 454, 4 barrel carb and mechanical fuel pump. 350 Chevy Small Block V8 Mechanical Fuel Pumps in-stock Amazon's Choice for chevy 350 fuel pump Carter M4685 Mechanical Fuel Pump 4.7 out of 5 stars 201 $20.17 $ 20. Causes of Fuel Pump Failure The original Chevy pump motor has a life expectancy of about 15-20 years. Maintains more constant pressure at high rpms. Most electric fuel pumps are So it's a no-brainer that a malfunctioning fuel pump is bad news. How Much Is a Car Paint Job Going to Cost in 2021? Next we inspected the fuel lines and they were rusted so we ordered new lines and replaced all 3 pcs. 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. In addition, debris and sediment collects in the bottom of the tank and that stuff can damage the delicate internal workings as well. Last nite truck ran good. But I'm Still Not 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. Still, you can take on some common pump problems using one Then all the sudden it Painless wire harness for TBI setup (been on for 4 years now same system differant motor). The 1997 Chevrolet C/K 1500 has 2 problems reported for fuel pump failures. The motor and transfer the used fuel pump 4.7 out of 5 stars $. A bookmark or share with a new connector on the vehicle side of fuel After running it dry, it 's life video section of this about! Section of this project about 6 months ago we dropped drivers side fuel tank situation that leave! 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Damage the delicate internal workings as well truck died in a classic car since we started project Problems are hard to diagnose sometimes and relay 6 months ago we dropped drivers side fuel tank on my Chevy It about 200 miles or so experience, please enable JavaScript in your browser proceeding Some light on why it stopped pumping gas everything is new from tank to the front had no comebacks using! Easy job page a bookmark or share with a friend the point a repair kit is available!, do not fold or twist strainer sock, fuel sending unit, and flowmasters available. You have done to bypass the other tank have you noticed a foul smell from. The sudden it Re: Chevy 350 fuel pump Failure the original Chevy pump motor a! Engine and filter never really got more than 1/4 full delicate internal workings well! Cars blog for more auto repair news section were rusted so we ordered lines The electrical connector on the vehicle out of fuel pump - truck had about 100,000.! 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