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OK, I have been told that my 99 Express Van needs a new fuel pump, but I'm not so convinced. My van runs. It makes a little noise...kinda a puttering, not loud. The check engine light was on, but currently it's off. It seems from what I've been reading that if you need a new fuel pump, your car will not start, or it will stall and need to be restarted... It actually runs just fine, the puttering starts when I'm accelerating, but it does not slow the van down. I was told that I needed a new fuel pump, maybe a new compressor, and all new wiring and spark plugs! Total cost would be just under $3,000!!! Please, if you have any insight at all, please share.

Please, only people who are mechanics, or really know something about cars. Thank you so much!

2007-09-01 06:31:06 · 7 answers · asked by Anonymous 3 in Cars & Transportation Maintenance & Repairs

Oh, the mechanics said it was giving codes po171 and po174 relating to internal engine misfires and lean condition caused from faulty spark plugs, faulty sparg plug wires, weak fuel pump pressure and incorrect mass air flow sensor readings.

Obviously I know nothing about cars, but if they write this on the report, does it mean that all this is causing the errors, or that these things are possibilities??

2007-09-01 06:35:53 · update #1

My van is not stalling at all.

It's never stopped... it runs great, just makes a puttering/ticking noise.

2007-09-01 06:39:49 · update #2

7 answers

GM fuel pumps are notorious for going bad. (I own two Chevys).

If you've never had a tuneup done, and tend to run the van almost out of gas before you refuel it, the fuel pump is probably worn out.

The reason it costs so much, is the fuel pump is inside the gas tank and the tank needs to be drained and removed from the van to replace the pump.

If you are driving it still, and decide to have it repaired, run it almost out of gas before you take it in. (they will charge you to dispose of ALL the gas in the tank)

Personaly, I'd have a tuneup done first.
Spark plugs
Air filter
Ignition wires.
Oil and filter
etc.(including fuel filter)
Any good shop should test the fuel pump FIRST before just replacing it.

If after the tuneup, and fuel filter change it continues to run icky, then have the pump replaced.

2007-09-01 06:47:11 · answer #1 · answered by Mr. KnowItAll 7 · 0 0

This Site Might Help You.

RE:
Do I need a new fuel pump?
OK, I have been told that my 99 Express Van needs a new fuel pump, but I'm not so convinced. My van runs. It makes a little noise...kinda a puttering, not loud. The check engine light was on, but currently it's off. It seems from what I've been reading that if you need a new fuel...

2015-08-07 19:19:42 · answer #2 · answered by Marni 1 · 0 0

The fuel pump can fail and deliver a lesser pressure than required, this will cause the sputtering and lean condition, what does a compressor have to do with the running? The only compresser is for AC. Fix whats broke first, get a book Hayne's or chilton's and change the pump, two strap bolts and a floor jack you can drop the tank down, ( if you have more than a quarter tank of fuel, siphen it down). Then take it over to autozone and have them clear the trouble codes (free) and see what happens.

2007-09-01 06:45:13 · answer #3 · answered by Anonymous · 0 0

I recently had this problem. My car when I was idling was stalling out and sputtering from the exhaust. They thought it was my fuel pump but it turned out to be my intake gasket. Also, they told me that my spark plugs and wiring needed to be redone. I ended up paying $900 for all of that, so maybe have them check that out and see. My dad who is a mechanic says if you know anyone who is handy you can just buy a fuel pump from an auto parts store and install it. He says its not hard at all. Because the majority of the price is coming from labor alone. Good luck.

2007-09-01 06:37:17 · answer #4 · answered by Anonymous · 0 0

If you have taken your car to a certified mechanic and they have given you a report, it is a summary of problems to come.You may choose to deal with the matter while it is minor or run the risk of having to do major repairs.As for the cost of the problem, it would probably be worth your time and money to shop around.While you are shopping,make a comparison of the feedback you are getting about your problems.If the answers show consistentcy with your diagnostic report,that business might be the one that keeps you and your van on the road.

2007-09-01 07:29:05 · answer #5 · answered by Mac 1 · 0 0

This sound more like the dreaded PGM relay that's located under the dash above the glove box. Fails when car interior is warm. Then starts again when the interior cools down. It's caused by a faulty solder weld. Fix is to replace the relay

2016-03-15 01:51:24 · answer #6 · answered by Tammie 4 · 0 0

Well if it runs and drives the pump is not the problem.

I would go the tune up route and see where you are at after that.

spark plugs
plug wires
distributor cap
rotor button
oil change - and filter(s)
air filter - pvc valve
tire pressure - always check when you do the oil change
grease all fittings - when you do the oil

2007-09-01 06:39:18 · answer #7 · answered by cgriffin1972 6 · 0 0

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