Tech Support
Local Repair
Reviews & Ratings

Join | Answer Questions | Sign In

Help me with
Search
Home | GMC | 1998 Sierra | 1998 GMC Sierra- run...
1998 GMC Sierra
Problem for GMC 1998 Sierra

1998 GMC Sierra- runs rough then stalls when




By mvillen248 on Jun 04, 2009

" "
1998 GMC Sierra with 5.7 vortec. runs rough then stalls when stepping on accelerator. Have put on new fuel pump, new fuel pressure regulator, new fuel pump relay, new air filter. No leaks in fuel lines, truck starts and runs but loses pressure and stalls out still. Pressure about 62 then drops. please help
Ads by Google

Clarification Request

Posted by soc21610k on Jun 04, 2009

62 is that a fuel pressure test?

Posted by carhob on Jun 04, 2009

did u check if voltage at pump was fluctuating?

Posted by duane_wine on Jun 04, 2009

what about fuel filter ?

Best Solution

posted on Jun 06, 2009
Very Helpful)

dennymulford
dennymulford

Rank: Wiz  GMC Cars  Expert
Rating: 85%, 352 votes
had this problem on my neighbors 98 chevy truck with the same engine !!
it turnd out too be the fuel pressure regulator,you have too pull the upper intake too replace it!!
Was this helpful?
Yes
No
1 person thought this was helpful

Popular Solutions for 1998 GMC Sierra


1998 Sierra
1998 GMC Sierra
something is draining my battery at night....
something is draining my battery at night. it has a new battery.
1 Solution

1998 Sierra
1998 GMC Sierra
sierra head lights
i have an 1999 sierra, the problem is that the headlights don't came off, even if i...
1 Solution

1998 Sierra
1998 GMC Sierra
1998 GMC 2500 when driving there is this...
1998 GMC 2500 when driving there is this constant burst sound that comes from the...
1 Solution

1998 Sierra
1998 GMC Sierra
GM truck vortec Eng oil pressure low with...
during Eng start up oil pressure very low almost zero with nicking noise oil pressure...
2 Solutions

1998 Sierra
1998 GMC Sierra
is there a fuse / fuseable link between the
is there a fuse / fuseable link between the battery and alternator on a 1998 gms...
1 Solution

Questions and Unsolved Problems for 1998 GMC Sierra


Do you recommend GMC 1998 Sierra?
Answer

1998 GMC Sierra
1998 GMC Sierra

1998 GMC Sierra w/454 Motor is...

Answer
1998 GMC Sierra w/454 Motor is POPPING like a POPCORN MACHINE> any ideas what this could be?

1998 GMC Sierra
1998 GMC Sierra

I have a 1994 gmc 4x4 and the front...

Answer
I have a 1994 gmc 4x4 and the front axles wont lock into 4 wheel drive, we checked and there is... (More)

1998 GMC Sierra
1998 GMC Sierra

service engine light came on and...

Answer
service engine light came on and blower fan not working at same time but was fine the day before. l

1998 GMC Sierra
1998 GMC Sierra

1998 gmc sierra k2500 5.7 wont stay...

Answer
truck ran great, then fuel pump went out. replaced fuel pump and fuel relay, cudnt start it at all... (More)

1998 GMC Sierra
1998 GMC Sierra

i was light on anifreeze and my have...

Answer
i was light on anifreeze and my have blown my frezze plugs where my bell housin is. How many plus... (More)


Didn't find what you were looking for?

Describe your Cars problem:


Ads by Google



Ask our Experts

Ask

 

Solve Your Problem Now!
Chat Live with an Expert
Chat Now
Top Car Experts
wracefans24
Rank:
Guru
Cars
Expert

Rating:
95%, 790 votes


Mustgo
Rank:
Guru
Cars
Expert

Rating:
88%, 205 votes


emissionwiz
Rank:
Guru
Cars
Expert

Rating:
90%, 8566 votes


Find more Car Experts
Top Car Mechanics

Car Stuff
(800) 262-0795
Find awesome deals on a superior quality Discount...
Car Stuff

collisionrepairadvice....
(602) 909-6450

See More
Get Listed!

       
Solve Your Problem Now!
Chat Live with an Expert
Chat Now

Insert Link
Insert Image
Insert You-Tube clip
Insert List
Insert List
Spell Check

What is this?



Select