1998 chevy s-10 zr2 fuel pump

zr2man2001 · 11-20-2009, 03:43 PM

hey guys new here hopefully you can help me out. We just replaced the fuel pump, we just did the actual pump not the whole assembly. It works exactly like the old pump, it will turn on you can hear it but sometimes the truck wont start, you have to get under and tap where the fuel pump is and it will run like a champ. Any ideas?

raven2510 · 11-21-2009, 07:50 PM

maybe a bad wire connection?

**A CLEANMACHINE** · 11-22-2009, 04:00 PM

that's exactly what i was thinking .where's the relay for it mounted.

raven2510 · 11-22-2009, 07:14 PM

the relay for the pump is in the engine bay fuse box

contact420 · 11-29-2009, 07:21 PM

Have you had a presure guage on it. It might be 1 or 2 PSI under the required presure. if its no exactly where GM calls for it wont run. Mine was under by 1PSI and it cost me $250.00. Ya, I know that sucks, but what can you do. If you didn't change the whole assembly you might have a small leak at the assembly. there a reason why the made then together like that. If the pump isn't clamped in good enough it might cause a presure drop. I have changed thes efuel pump alot and not on my truck, on everyone elses. I do alot of work on other people trucks. some call me the S10specialist.

1 PSI of presure will cause it not to run. get a presure gauge. you will use it alot more then you think. most problems on cars ar iether fuel presure or spark.

I cant say it any easier then that.

coreystartat · 12-06-2009, 02:18 PM

don't ever just change the pump change the whole pump. just buying the pump replacement is no good.

11-20-2009, 03:43 PM	#1
zr2man2001 Registered User Age: 21 Join Date: Nov 2009 Posts: 1 Location: User is: OffLine	1998 chevy s-10 zr2 fuel pump hey guys new here hopefully you can help me out. We just replaced the fuel pump, we just did the actual pump not the whole assembly. It works exactly like the old pump, it will turn on you can hear it but sometimes the truck wont start, you have to get under and tap where the fuel pump is and it will run like a champ. Any ideas?
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11-21-2009, 07:50 PM	#2
raven2510 Overhead Console Expert Age: 22 Join Date: Jan 2008 Posts: 1,728 Location: Omaha, Nebraska User is: OffLine	Re: 1998 chevy s-10 zr2 fuel pump maybe a bad wire connection?
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11-22-2009, 04:00 PM	#3
A CLEANMACHINE Senior Member Join Date: Sep 2006 Posts: 541 Location: ORLAND PARK ILLINOIS User is: OffLine	Re: 1998 chevy s-10 zr2 fuel pump that's exactly what i was thinking .where's the relay for it mounted.
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11-22-2009, 07:14 PM	#4
raven2510 Overhead Console Expert Age: 22 Join Date: Jan 2008 Posts: 1,728 Location: Omaha, Nebraska User is: OffLine	Re: 1998 chevy s-10 zr2 fuel pump the relay for the pump is in the engine bay fuse box
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11-29-2009, 07:21 PM	#5
contact420 Registered User Join Date: Sep 2008 Posts: 177 Location: User is: OffLine	Re: 1998 chevy s-10 zr2 fuel pump Have you had a presure guage on it. It might be 1 or 2 PSI under the required presure. if its no exactly where GM calls for it wont run. Mine was under by 1PSI and it cost me $250.00. Ya, I know that sucks, but what can you do. If you didn't change the whole assembly you might have a small leak at the assembly. there a reason why the made then together like that. If the pump isn't clamped in good enough it might cause a presure drop. I have changed thes efuel pump alot and not on my truck, on everyone elses. I do alot of work on other people trucks. some call me the S10specialist. 1 PSI of presure will cause it not to run. get a presure gauge. you will use it alot more then you think. most problems on cars ar iether fuel presure or spark. I cant say it any easier then that.
	[Reply w/Quote]

12-06-2009, 02:18 PM	#6
coreystartat Registered User Join Date: Dec 2009 Posts: 30 Location: User is: OffLine	Re: 1998 chevy s-10 zr2 fuel pump don't ever just change the pump change the whole pump. just buying the pump replacement is no good.
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