Engine Problems with my '87 V10 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Wertzy · 01-27-2005, 05:06 PM

Well, this has lately gotten much worse. I'll try to explain this the best I can. Here is my problem...

I go outside before school to start my truck to let it warm up. It starts up fine and idle's fine. I let it warm up for usually 10 minutes. I then leave my house but the darn thing will NOT move. I mean, it moves, but at a brisk pace of 15mph...25 mph tops. If I go anymore then 1/4 throttle, it starts to bog down and almost die unless I let off the gas and go back to idle. Even after driving a while to get it warmed up more, it still does this. As I am driving to school, I am TRYING to get up the hill (my HS is on the top of the biggest hill in town) and it stalls on me halfway up the hill. I stop, park it, restarts fine. I attempt it again, can't go over barely 1/4 throttle or it will die again. So I have to keep pumping the gas to get up this hill. Finally after 8 minutes of climbing, which should only take like 2 or 3 minutes, I get to the parking lot.

Now, I get out of school, go to start it, starts fine again and I let it warm for about 5 minutes. Going down the hill is no problem, just let it coast. LOL. So I get to the bottom at an intersection. I hit the gas to go and it stalls on me right in the middle of the intersection. I start it again and off I go at a heart racing 25 mph.

Sorry for the long story, but would anyone know what the problem would be? I'm already starting out with small things like new fuel filter, plugs, and wires. My truck is an '87 V10 Silverado 4x4 with a 305ci 5.0L V8.

Any help is GREATLY appreciated.

MSL · 01-27-2005, 08:18 PM

Check your timing. let us know what thats doing. maybe try a fuel pressure test.

mitch1965 · 01-27-2005, 09:18 PM

Look at your exhaust system for any restrictions. My brother once went for 3 weeks troubleshooting his car, with similar symptoms, before finding he had run over something that crimped his tail pipe. Good Luck.

C-10volvo · 01-27-2005, 09:39 PM

i had this same problem with my 305. the fuel pump was slowly going out.

magnethead · 01-27-2005, 09:41 PM

fuel delivery system.

Russell · 01-27-2005, 09:46 PM

I've got a used TBI pump you could have for 40 bucks shipped if you are interested. I pulled it out of a fuel tank that I pulled from a running 91 Suburban with a 350. Replaced it with a TPI pump for my TPI setup.

ponchodoc · 01-27-2005, 10:20 PM

Quote:

Originally Posted by Russell

I've got a used TBI pump you could have for 40 bucks shipped if you are interested. I pulled it out of a fuel tank that I pulled from a running 91 Suburban with a 350. Replaced it with a TPI pump for my TPI setup.

Autozone gots em too!

FUEL PUMP for a
1987 CHEVROLET TRUCK V10 1/2 TON P/U 4WD
Normal Stock
Special Order
Not Available

Item Part
No.
Warranty Core
Value Unit
Price Availability
Store Web
MASTER E3902 LLT $38.99
*** CAUTION ***
A FUEL PUMP IS MORE LIKELY TO FAIL IF INSTALLED
WITHOUT A NEW STRAINER AND FILTER. (MORE...)

AC-DELCO
CAN ALSO BE USED EP386 1 YR $44.99

AC-DELCO EP382 1 YR $59.99

Wertzy · 01-28-2005, 04:56 PM

Wow, thanks for all the suggestions guys! This really helps.

I'll let you guys know if I find the problem.

**Captkaos** · 01-28-2005, 05:02 PM

Have you replace the fuel filter on it yet?

76HighSierra · 01-28-2005, 05:04 PM

Check the filter, before you go buying an expensive fuel pump. Sounds like a clogged filter, to me.

*EDIT* Captkaos beat me to it!

Wertzy · 01-29-2005, 02:32 PM

Ok cool. I found a fuel filter at autozone. However I do have another question. Where is the fuel filter located? I'm assuming its on the left frame rail but I'm not positive. Please let me know. Thanks.

magnethead · 01-29-2005, 04:25 PM

if it's a dual tank, i dont know for sure, otherwise it should be the left frame rail somewhere around the centerline of the door if i remember right.

Wertzy · 01-29-2005, 05:23 PM

It is a dual tank.

Jason Spears · 01-29-2005, 06:09 PM

The fuel filter is on the passenger side frame rail. It will be up beside your transfer case. It is kind of a PITA to get out, especially if it is seized. Make sure you use line wrenches so you don't round off the fittings. It is very easy to do, especially if you are in an awkward position. Good luck.

Wertzy · 01-30-2005, 12:38 PM

Would I have to worry about releasing any pressure in the fuel lines? If so, how would I go about doing so?

Russell · 01-30-2005, 01:41 PM

There should be a little vent up beside the throttle body, looks a bit like a fitting you'd use to blow a tire up. Be careful with this those, while there should not be a major about of fuel in the line (it does have a return for excess pressure) it would really hurt to get gasoline vapour in your eyes / mouth or something

Wertzy · 01-30-2005, 02:12 PM

Ok cool. Thanks for all the help everyone.

Jason Spears · 01-30-2005, 02:48 PM

There will be no pressure in the fuel lines as long as the key is not in the run position. There is an pressure bleed off in the pressure regulator which releases fuel pressure after the pump turns off. (Its really just a very small bypass around the regulator) This does not mean that you don't have to be careful. Try putting a rag over the connection you are going to disconnect.

01-27-2005, 05:06 PM	#1
Wertzy Anti-Rice Join Date: Nov 2004 Location: Warren, PA Posts: 69	Engine Problems with my '87 V10 Well, this has lately gotten much worse. I'll try to explain this the best I can. Here is my problem... I go outside before school to start my truck to let it warm up. It starts up fine and idle's fine. I let it warm up for usually 10 minutes. I then leave my house but the darn thing will NOT move. I mean, it moves, but at a brisk pace of 15mph...25 mph tops. If I go anymore then 1/4 throttle, it starts to bog down and almost die unless I let off the gas and go back to idle. Even after driving a while to get it warmed up more, it still does this. As I am driving to school, I am TRYING to get up the hill (my HS is on the top of the biggest hill in town) and it stalls on me halfway up the hill. I stop, park it, restarts fine. I attempt it again, can't go over barely 1/4 throttle or it will die again. So I have to keep pumping the gas to get up this hill. Finally after 8 minutes of climbing, which should only take like 2 or 3 minutes, I get to the parking lot. Now, I get out of school, go to start it, starts fine again and I let it warm for about 5 minutes. Going down the hill is no problem, just let it coast. LOL. So I get to the bottom at an intersection. I hit the gas to go and it stalls on me right in the middle of the intersection. I start it again and off I go at a heart racing 25 mph. Sorry for the long story, but would anyone know what the problem would be? I'm already starting out with small things like new fuel filter, plugs, and wires. My truck is an '87 V10 Silverado 4x4 with a 305ci 5.0L V8. Any help is GREATLY appreciated.

01-27-2005, 09:39 PM	#4
C-10volvo Registered User Join Date: May 2003 Location: Lake Oswego, Oregon Posts: 1,028	i had this same problem with my 305. the fuel pump was slowly going out. __________________ Ken Morgan For fun: 1964 Volvo 122 For slow: 1984 Chevrolet C-10 For everything else: 1997 BMW M3 Last edited by C-10volvo; 01-27-2005 at 09:42 PM.

01-27-2005, 09:46 PM	#6
Russell Professional Grade Join Date: May 2003 Location: Fort McMurray, Alberta Posts: 7,915	I've got a used TBI pump you could have for 40 bucks shipped if you are interested. I pulled it out of a fuel tank that I pulled from a running 91 Suburban with a 350. Replaced it with a TPI pump for my TPI setup. __________________ 1995 Chevrolet 2 Door Tahoe (6.6L LBZ Duramax / ZF6 / NP241 with 1 ton solid axle swap)

01-28-2005, 05:02 PM	#9
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	Have you replace the fuel filter on it yet? __________________ Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com

01-28-2005, 05:04 PM	#10
76HighSierra DAMN, I love Big Blocks! Join Date: Aug 2003 Location: New Mexico, USA Posts: 619	Check the filter, before you go buying an expensive fuel pump. Sounds like a clogged filter, to me. EDIT Captkaos beat me to it! __________________ Marc Bona Hobbs, New Mexico 1976 1/2 ton GMC High Sierra. 454 c.i.d./ TH400. *Soon to get a mild warming over.* 3.40 rear.

01-27-2005, 08:18 PM	#2
MSL Registered User Join Date: Mar 2003 Location: So.Oregon Posts: 765	Check your timing. let us know what thats doing. maybe try a fuel pressure test.

01-27-2005, 09:18 PM	#3
mitch1965 Registered User Join Date: Oct 2004 Location: Fort Collins, Colorado Posts: 376	Look at your exhaust system for any restrictions. My brother once went for 3 weeks troubleshooting his car, with similar symptoms, before finding he had run over something that crimped his tail pipe. Good Luck.

01-27-2005, 09:41 PM	#5
magnethead 7000 #'s of american IRON Join Date: Dec 2004 Location: north tx Posts: 883	fuel delivery system.

01-28-2005, 04:56 PM	#8
Wertzy Anti-Rice Join Date: Nov 2004 Location: Warren, PA Posts: 69	Wow, thanks for all the suggestions guys! This really helps. I'll let you guys know if I find the problem.

01-29-2005, 02:32 PM	#11
Wertzy Anti-Rice Join Date: Nov 2004 Location: Warren, PA Posts: 69	Ok cool. I found a fuel filter at autozone. However I do have another question. Where is the fuel filter located? I'm assuming its on the left frame rail but I'm not positive. Please let me know. Thanks.

01-29-2005, 04:25 PM	#12
magnethead 7000 #'s of american IRON Join Date: Dec 2004 Location: north tx Posts: 883	if it's a dual tank, i dont know for sure, otherwise it should be the left frame rail somewhere around the centerline of the door if i remember right.

01-29-2005, 05:23 PM	#13
Wertzy Anti-Rice Join Date: Nov 2004 Location: Warren, PA Posts: 69	It is a dual tank.

01-29-2005, 06:09 PM	#14
Jason Spears Registered User Join Date: Dec 2002 Location: Stoney Creek, ON Posts: 89	The fuel filter is on the passenger side frame rail. It will be up beside your transfer case. It is kind of a PITA to get out, especially if it is seized. Make sure you use line wrenches so you don't round off the fittings. It is very easy to do, especially if you are in an awkward position. Good luck.

01-30-2005, 12:38 PM	#15
Wertzy Anti-Rice Join Date: Nov 2004 Location: Warren, PA Posts: 69	Would I have to worry about releasing any pressure in the fuel lines? If so, how would I go about doing so?

01-30-2005, 01:41 PM	#16
Russell Professional Grade Join Date: May 2003 Location: Fort McMurray, Alberta Posts: 7,915	There should be a little vent up beside the throttle body, looks a bit like a fitting you'd use to blow a tire up. Be careful with this those, while there should not be a major about of fuel in the line (it does have a return for excess pressure) it would really hurt to get gasoline vapour in your eyes / mouth or something __________________ 1995 Chevrolet 2 Door Tahoe (6.6L LBZ Duramax / ZF6 / NP241 with 1 ton solid axle swap)



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01-30-2005, 02:12 PM	#17
Wertzy Anti-Rice Join Date: Nov 2004 Location: Warren, PA Posts: 69	Ok cool. Thanks for all the help everyone.

01-30-2005, 02:48 PM	#18
Jason Spears Registered User Join Date: Dec 2002 Location: Stoney Creek, ON Posts: 89	There will be no pressure in the fuel lines as long as the key is not in the run position. There is an pressure bleed off in the pressure regulator which releases fuel pressure after the pump turns off. (Its really just a very small bypass around the regulator) This does not mean that you don't have to be careful. Try putting a rag over the connection you are going to disconnect.

Register or Log In To remove these advertisements.