Edmunds.com | Inside Line | Auto Observer Your Account | Help | Directory
You are here:
![[F]](http://a332.g.akamai.net/f/332/936/12h/www.edmunds.com/media/townhall/webxicons/site.gif){kind=small}
Forums
SUVs Chevrolet Blazer Blazer Fuel Pump Problems
100 messages, Last post on Oct 14, 2009 at 1:24 PM
You are in the Chevrolet Blazer Forum. Your Hosts are steve_ & tidester
|
Yes, the fuel pressure regulator could be faulty. However, you better hope it isn't because a 1992 and later S/T-10 Blazer equipped with CPI (Central Port Injection), the fuel pressure regulator costs more than $500.00 because you cannot purchase it separately from the fuel injection spider assembly. Unlike a 1992 and later model, a 1987-1991 S/T-10 Blazer with TBI (Throttle Body Injection) the fuel pressure regulator costs $90.00 and can be replaced without replacing the throttle body.
|
|
|
Replying to: bubbleszcar (Jul 11, 2008 11:57 am) |
|
|
|
|
1989 S-10 Blazer 2.8. Replaced spark plugs and wires. Replaced fuel pump relay (both of them). Replaced fuel filter. Car will crank but will not start. If I spray in some carb cleaner, car will "run" until carb cleaner burns off. How do I know if the fuel pump is bad? What do I listen for? Can I remove the line to the fuel filter and see if gas is moving through the line? A mechanic told me to hit its location with a hammer, but how is this done since it is in gas tank? And, I don't know where in the tank it is to hit the location properly. Any help would be greatly appreciated.
|
|
|
The so-called mechanic who told you to "hit it with a hammer" was joking. Mechanics are not going to tell you how to fix something because finding the problem and fixing it is what they do for a living. A good ASE trained mechanic will know how to use fuel pressure guages and will use them to guage to test the out-put pressure of an electric fuel pump. They also can use a TBI fuel injection solenoid harness tester to find electrical or fuel system malfunctions. If the fuel pump tests good, the TBI pressure regulator may be bad. The part that may be bad is a AC Delco TBI pressure regulator...Part no. 217-2903, and costs $54.00. Find a ASE trained mechanic with the proper equipment. That will be expensive but not as expensive as replacing parts until you find the problem. Local independently owned mechanics cannot afford expensive test equipment, even if they knew how to use it. All those guys can do is keep replacing parts untill they finally find the problem ....at your expense. A good mechanic with the proper tools can go directly to the problem and fix it. |
|
|
|
|
Excessive parts and labor cost is usually the reason we do thing ourselves. The fuel pump is located inside the fuel tank and it is at least a 4 hour job if you have all the parts and the tools. No special tools are required. A independent auto repair shop would charge about $260 labor plus $150 for the parts, for a total of $410 to do the job plus guarantee it for 90 days, whatever a guarantee is worth. If you buy the parts and do the work yourself, it will cost: Pump.....................$95.00 Strainer..................$8.00 Wiring harness.......$10.00 Total......................$113.00 If you do the work yourself and buy the parts, there is no guarantee, but the pay is pretty good. |
|
|
Replying to: myblazer (Nov 03, 2008 12:11 pm) The first thing you will need to do is get the fuel out of your tank, but you cant do it from the fill cap alone. under the blazer is 2 bands that wrap around the fuel tank. Drop them down as far as you can go without taking them off. Next, access your tank through the rear wheel well, remove the fill hose from the fuel tank and open up your nifty walmart siphon pump. Depending upon your level of gas, you might need a couple 5 gal cans. Remove the gas from your tank. Next,while your tank is lowered, remove the breather tube from the top front of the tank, its a tight squeeze and theres a spring clamp around it but you can usually just pullit off with a good tug by hand. After you do that, you will need to remove the fuel lines from your pump. Break open those new fuel line remover sleeves you bought and go back to the back under the blazer. Find the sleeve that fits around the adapters on your pump and slide the sleeve where it couples with the fuel line, there is a ring in that coupler where you need to slide the sleeve under to unlock it from the pump. The middle one may be tricky so either modify your sleeve, or I just broke the center plastic piece off my pump because it was garbage anyways. Remove the wiring harness on the pump. REMEMBER THE ORDER THESE HOSES GO BACK IN ON. So now,You should have fuel siphoned out, breather tube disconnected, and your fuel lines removed from the fuel pump. For easier acessability you could also drive your entire driver side up on car ramps, I just jacked up the back but its up to you. Now, lay under the fuel tank and remove the bolds the rest of the way, taking not how the brackets lock back into the chassis. the tank only weighs about 5lbs so drop it down to your chest and slide it out. Remove the lock ring for the fuel pump. There should be a tab on the tank that holds the ring in place, if the ring is rusty, or doesn't want to spin, use a hammer and a screwdriver in one of the slots and tap it out. Your pump will only fit in there one way because there is a notch. Break out the NEW O-ring and cover it with the lube that comes with it. Put it on the pump and and insert the pump back into the tank. Don't force it in the tank. Your O-ring may not be seated properly and you want to avoid shearing pieces off if you pinch it. To install just do the steps backwards. 1. Put the tank back on the brackets and get the threads started. 2. Attach your breather tube on the top of tank. 3. Install your fuel lines and electrical back on pump. Did you remember the order? 4. Re-attach your fill hose 5.Tighten your bolts on your mounting bands I did it twice on mine, first one was a bad pump, but I would estimate the time on this to be an 1hr to 1.5 hours.
|
|
Actually, I didnt say "Hit it with a hammer." I actually said tap it with a hammer, and what im talking about tapping is the steel ring that holds the pump onto the tank. It looked by his post that he was looking to attempt it at home, which anyone can do. Sure you could spend $800 for a service station to Professionally change it out, on top of you buying a $30 gauge part number 327a-asd72 or whatever it is. but i dont think that some joe blow replacing the fuel pump is going to buy an expensive tool to spin a lock ring an inch, and i could almost bet that a mechanic would do something similar. and no, im not a mechanic, but i changed mine out and it still works 
|
|
|
|
OK. deep breath. My mechanic has had my 98 Blazer for 7 WEEKS now.  I took it in because the fuel pump had gone out (again). It had gone out about 3 years ago. Anyway, they replaced it but then had problems with power getting to the pump. They have narrowed it down to the underhood fuse block, saying that there is a short in there somewhere. They have tried to replace the fuse block twice (with 98 blazer fuse blocks) but the ones they found will not work. They are missing a pin or something. What the heck???????? Can anyone offer any help (other than finding a new mechanic). Thanks.
|
|
|
|
|
Replying to: pinetopfirefig (Nov 04, 2008 8:18 am) Get a tow truck and save your Blazer. The guy is not a mechanic, he's a half-wit parts swapper who doesn't know what he is doing!
|
|
You are here:
Forums
SUVs Chevrolet Blazer Blazer Fuel Pump Problems
New? Join Now!
Forum Tools
Search Forums
Browse by Vehicle
2005 Chevrolet Blazer
Browse by Board
Browse by Topic
Today's Chats
